Warning: SPOILERS for Rick and Morty Season 4, Episode 7, "Promortyus ."

While the series is famous for its shocking dark comedy, Rick and Morty season 4, episode 7, "Promortyus" revealed that the title characters do hold at least one thing sacred; they refuse to make light of the destruction of the World Trade Center or tell any kind of joke involving the terrorist attacks on 9/11. It's hard to say what is more surprising; that Rick Sanchez would draw the line somewhere or that he would draw it on this specific point.

It would be fair to say that Rick Sanchez is fairly amoral and has committed countless atrocities in his life. He once took advantage of all the red-haired women of an alien species dominated by his former lover Unity, just to satisfy one particularly loathsome fantasy. He also overthrew a fascist intergalactic empire for no other reason than it allowed him, after a lengthy and contrived chain of events, to briefly rid himself of his annoying son-in-law, Jerry. Given that, it would be fair to say that there are few things Rick Sanchez would never do under any circumstance. Yet the events "Promortyus" showed that even Rick has his limits.

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Rick and Morty season 4, episode 7, "Promortyus" opened with Rick and Morty escaping thralldom on a distant alien world taken over by a species of parasites known as Glorzo. After briefly trying to blend in by taping dead Glorzos to their faces, the two made a break for freedom. Rather than leave the planet right away, however, Rick and Morty decided to engage in a little guilt-free mayhem, justifying their Star Wars-inspired bombing run by saying that it didn't really count if the culture you were destroying had been dominated by face-huggers, ala Prometheus. Rick even went so far as to compare killing these aliens to "popping bubble wrap"  though whatever enthusiasm he and Morty shared faded as they flew into view of two familiar looking towers.

Rick and Morty Avoid 9-11 Joke

With uncharacteristic silence and restraint, they flew past the twin towers without a comment or an explosion. Once they were past it, Rick noted that he was proud of both himself and Morty for not taking the shot. They agreed that they were better than that and that the visual of destroying two towers, even on an alien world, would have been low-hanging fruit and totally beneath them.

They also agreed, rather quickly, that enough time had passed that it was perfectly safe to recreate Pearl Harbor. The two bombed a sea port shortly before taunting the aliens, saying they "should have been a better species," and fleeing the planet. While Rick and Morty may respect some boundaries of good taste, they're still a pretty rotten duo, but let it never be said that they don't have standards. Low as they are, there are still some standards.

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