Yeah I hate it when you get THOSE kinda people in on the action and it just makes it a big f**king intolerable mess for everyone else. What you want is to get a group of people you know will play together nicely and have a good time doing so. Nobody wants rogue elements in their D&D sessions because it's no fun. I do remember this one guy whom I was playing StarGate SG1 with and for some unknown reason he goes off on a binge of making like everyone else was the enemy and starts to shoot us. Either out of boredom right from the start of the session or just to kick things up a notch, I'll never know. But what i do know is he went about the campaign in totally the wrong way. To this day I think that guy has some sort of mental malfunction where he can't differentiate friend from foe even if it's just a game Bottom-line, he was a big douchebage and had no real morals. Definitely the type of person society can do without.
Thank you. You just described his posse of assclowns. Oh, they also took 45 minutes per turn, meticulously going over evey stat of their chatacter, fellow characters, enemies, asking fpr the area to be described in great detail, referencing every guide we had on hand-it just ruined it for me. And they were TERRIBLE for going AWOL & then yelling "I'M CHAOTIC, LOZLORROFLCOPTR!!!!!!111!!1!"-it was just a mish mash of class-A jackassery. Terrible, awful group. I wasn't well liked, but I was
very lucky about rolling 20's, so I became a target for them. When I'd try to take up for myself when ex's brother was DM'ing I was told, "ZOMG, YOU'RE OPPOSING THE GOD OF THIS UNIVERSE, JU R SMITED! CHARACTER DEAD, NO RESURRECTION POSSIBLE!", with my ex saying, "Well yeah, that is the rules. Just let it go." Yeah, lovely bunch of people.