Glee's cheerleading coach Sue Sylvester is an iconic villain. The schemes she came up with to ruin Will Schuster and the New Direction's life gave a lot of great and hilarious moments throughout the show. Usually, the awful things that she did were petty and crazy enough to not be taken seriously.
However, there are a number of things that she did that even fans of the show think were going too far. Some of the awful things she did ended up endangering people's lives, or ruining people's reputations. Ultimately, there are a number of worst things that Sue Sylvester has done, that are all worth discussing.
Redirecting The New Direction's Plane
Putting children's lives in literal danger seems way too far, even for Sue. But she did just that in season 2, by redirecting the New Direction's flight to Nationals in New York, so that they would land in war-ravaged Libya. She did this with the hopes of the glee club getting kidnapped and killed upon arrival, and just shrugs it off when Will reprimands her for it.
The fact that she is so unconcerned with the lives of children is enough to make her look like an awful person, even if she does consider the glee club her sworn enemy. She was literally doing something that could have landed her in prison for a lifetime.
Kidnapping Kurt and Blaine
Glee Season 6 had many unexpected things that happened, including when Sue locked Kurt and Blaine inside a fake elevator in order to get them to make out with one another. She appears with a Saw-esque doll on a tricycle, and leaves them there overnight. She even pumps aphrodisiac drugs into the elevator in order to make them want to kiss.
While this does result in a hilarious number of scenes with Kurt and Blaine, when one thinks about it, this is kidnapping, which is very much illegal behavior. Not only that, but she threatens to kill their current partners unless they get together, which is even more evil.
Making The League Of Doom
What can be more evil villain-esque than creating an evil group? Because that is exactly what Sue did in season 2. She created the League of Doom, whose sole purpose was taking down the New Directions and helping their rival team, Vocal Adrenaline, win. The League involved multiple other enemies of the Glee club, including Dustin Goolsby, Sandy Ryerson, and Terri Del Monico.
The team's schemes included breaking up Will and Holly, checking the glee club as they performed, spreading rumors about the club's members, and even trying to get Will to quit. Going so far to ruin the lives of high schoolers seems pretty awful.
Trying To Fire Brittany Out Of A Cannon
Sue had a habit of endangering students' lives, and this even included the lives of her beloved Cheerios. In one of the many classic Glee episodes, Sue wants to step up their performances for a competition, so she buys a human canon, and tries to convince Brittany to be shot out of it.
When Principal Figgins points out that this could kill Brittany, Sue doesn't care. Not only that, but she actually tries to trick Brittany into signing a contract consenting to be shot out of the canon soon after. Sue could obviously be quite vicious when it came to winning competitions, but this was clearly taking it a step too far.
Framing And Blackmailing Figgins
Sue often hit Figgins with savage quotes, but there are a number of moments where she went too far. She gets him drunk at one point and pretends to sleep with him, which she then uses as blackmail, as she threatens to show pictures - sexual pictures that he did not consent to - to his wife. Sue also tries to blackmail Figgins with an embarrassing commercial that he once did.
Later on in the series, she actually gets him fired by placing incriminating magazines in his desk drawer. Not only does she frame him, afterwards she takes his job and demotes him to school janitor, and one may wonder where she even got those magazines in the first place.
Putting Blaine's Family In Debt
While this is only a throwaway line, it is another one of Sue's greatest crimes. Blaine storms into her office, and states that his identity has been stolen, and thirty credit cards and a house has been bought in his name. This has led to his parents' credit score being ruined for the next seven years, and he knows that Sue is behind it.
Sue does this as a threat, and to punish Blaine for not rejoining the Cheerios. This shows how far Sue is willing to go to ruin the lives of anyone who doesn't do exactly what she wants, to the point that she even ruins the lives of their families too.
Pushing A Man Down The Stairs
Sue was known to be very violent, and often pushed over anyone who was in her way. However, she did occasionally take this to an extreme extent, such as when she pushed the coach of a rival glee club, Aural Intensity, down the stairs, so that he would go into a coma and she could get his job. This was all just so she could try and take down the New Directions once again.
In fact, she pushed him twice, so no one could say that she did it accidentally. The man himself seemed very nice and unassuming, which makes her violence feel all the more disturbing, even though it is framed as a funny moment.
General Bigotry
Sue is aggressively bigoted in a lot of her views, and is famously intolerant of others' beliefs and lifestyles. While there is no one specific occasion of this, they all add up into being one of the worst things that she's done, and it's something about Sue that has aged poorly.
She misgenders Unique, refers to the homeless as "urban campers" and makes constant remarks about her students' appearance, ethnicity, and sexual orientation. She even locks plus-sized pupils in a pig pen in order to mock them. This bigotry has been called out by other characters, but Sue won't stop even when she knows that her words and actions hurt people.
Falsely Accusing Beiste Of Molestation
Falsely accusing someone of sexual assault is an awful act for both the accused and actual victims, as reporting actual sexual assault is already hard enough as it is. So when Sue tries to accuse Coach Beiste of this, she is clearly crossing the line.
While initially she and Will team up to take Beiste down, Will realises that they have gone too far when he hears what Sue had done. She even went so far as to try and coach Britanny to pretend to be a victim. No one deserves this to happen to them, but since Beiste ended up being such a nice person, it makes Sue's act even more awful.
Disbanding The Glee Club
While this action isn't exactly the worst thing in the real world, in the context of the show, disbanding the club was one of the worst things Sue ever did. In season 5, Principal Sue ended the glee club along with any other club that didn't win at Nationals that year.
This is a show of how obsessed Sue is with winning, but this came at the cost of the passion of every student who was in their own club for the love of it, not for the glory. Thankfully, she changed her ways later on, admitting that the arts were important, but it almost felt to little too late at this point in the show.