Healers who rescue pull tanks into mobs.

[Manamaru]

Something that should be common sense, is the notion that any "trolling" or pranking that you do, either IRL or in game; at some point you're going to get a metaphorical deck in the face; just because of how wide an array of how people may interpret your mischievous impish behavior. And that's just the fact of the matter. There's no "oh well you just hate fun about it". Actively doing it with your intent in mind to prank someone, you should also have the consideration of acknowledging what consequences there could be for it.

So if you're doing it, then just accept that you might at some point find yourself in a dark dungeon for a period of time, and you brought it on yourself. Don't like it? Don't do it, or try your best to talk with the GMs about it.

It may not happen tomorrow, or the week after. But at some point it will.