I played a few rounds as a Bartender named The Devil, with a huge black beard and glowing red eyes. I would start the round by taking several pills of Kelotane (a drug that cures burn damage over time), drinking a bunch of welding fuel, returning to the bar, and setting myself on fire. This produced a large but short-lived cloud of flame around me, giving most of the bar an ominously scorched appearance, and it allowed me keep burning for an extremely long period of time.
Because of the Kelotane in my system, the fire wouldn't actually hurt me; I could just stand around, blazing like a fucking bonfire, chatting amiably with people as they tried to decide whether to order drinks or run for a fire extinguisher. So, when a crewmember walked into the bar, he would discover a charred hellhole staffed by a flame-wreathed, red-eyed man named The Devil. A surprising number of people decided to order drinks anyway.
Now, I figure The Devil knows how to throw a fucking party. He doesn't just chuck a case of beer on the counter and call it quits, right? So whenever someone ordered a drink, I would mix together some hard liquor (usually vodka and rum), spritz in some welding fuel, and use a syringe to transfer some of my own blood to the glass, creating an unholy devilblood cocktail. Occasionally I would poo and pee in the glass as well, adding Jenkem to the list of Terrible Things Nobody Should Drink that were in the concoction.
Despite the fact that I did all of this gross shit in plain sight, just about everybody would take the damn thing and drink it anyway. Contrary to common sense, drinking that horrible sludge didn't really have any major negative effects, aside from moderate drunkenness and perhaps a mild Jenkem addiction. What's significant is that the welding fuel would remain in the imbiber's system for a while - and, party animal that he was, The Devil didn't skimp on the welding fuel.
Most rounds, this all amounted to nothing more than an overeager assistant spraying me with an extinguisher, putting out my hellfire, and incurring the wrath of Satan. But on one fateful round, the Botanist left a shitload of weed in the bar for everyone to enjoy. Paper was found, joints were rolled, someone produced an igniter, and then it was time to spark up.
The bar turned into a fucking inferno. Some of the crew stopped, dropped, and rolled like sensible people, while others tried to flee in a drunken fiery panic, which was hilarious to watch because the really drunk ones had scrambled controls and would stagger around in random directions while screaming "Ooooohhhh ggggoooodddd!!" Throughout all of this, The Devil stood at his bar, unharmed by the omnipresent cloud of fire, and laughed uproariously while mainlining vodka.
I don't think anybody died, but some people probably came close. Things just got funnier later on, as Engineering failed to do its job and the station's power went out of whack. Power surges caused lights to explode, and the drinkers who'd left before the fire got hit by the sparks, had the fuel still in their bodies ignite, and promptly immolated their surroundings while screaming in uncomprehending terror. It was Hell on Earth. It was also, to be honest, completely hysterical.
I don't do that anymore, partly because it's kind of a dick move, partly because it gets old fast, and partly because an admin got pretty annoyed with me (but he was cool enough to settle for my promise not to do it anymore). Even so, though, I'll be damned if it wasn't some of the funniest shit I'd ever seen.