I hooked up with my old gaming group in the late 90s and was involved in a fantastic campaign that lasted for about a year of weekly gaming back in 2E days. The DM ran a really tight ship (XP penalties for being late, no food at the table, etc) and was a terrific DM overall. He also effortlessly ran a huge gaming group - it was him and usually 9 or 10 players who showed up religiously every Saturday from 10am to 3pm (except for 4-5 mega sessions that went from 10am to well after midnight)
However, he was always looking for new players/fresh blood/fresh ideas. So, not long after I joined the group, another guy named Ilan joined the group and it was a disaster. His first PC idea was a kender paladin-thief based on Batman. WTF? First off, in 2E, paladins were limited to humans and could not multi-class under the core rules. And, kender? Batman? They don't really mix in concept, do they? So, the DM nixed that idea and the guy finally rolled up a human paladin whose last name was Bwayne (B. Wayne... Bruce Wayne... ha ha, get it?). He actually did okay that day at the table and I had expected him back the next week after his original looniness. Little did I know what else was going on...
1) I did not notice it at the time, but he spent the whole time leering at the one woman at the table, so much so that it made her uncomfortable. She later told the DM about it - and, she was NOT the type that would complain about anything unless it was really bad. (her boyfriend was at the table as well, which makes the leering even worse...)
2) The DM was involved as a player in a less serious Saturday night game at a friend's home a few towns over. I was on-again, off-again in the night game, and was not there that night, so missed this one. .So, this Ilan guy went over to the night game with the morning DM and Ilan's idea for a character in that game was a former prostitute with "really big breasts" who used her "assets" to distract the guards to break out of prison.
3) Additionally, since I was on the other side of the room, I did not notice this, but Ilan's hygiene was not the best...
So, he was asked not to come back the following week.
As a postscript to that, the DM's mint condition 1E Deities & Demigods book went missing after that day and he was right next to the bookshelf where the DM kept his books. We were never able to get in touch with him after that, but everybody strongly suspects he stole it in the hub-bub surrounding the end of the session.
As a second postscript, after I got this crazy job in a new area just over the border in Massachusetts, I had to leave that group in the New Haven area because I could not commit to weekly gaming. However, a few months later, I was contacted by a gaming couple that was new to the area and we exchanged some pleasant emails and he had commented on how they were having difficulty finding a gaming group, and the only person they met was this weird guy who wanted to play a kender paladin-thief based on Batman.