We had a single player who I eventually banned from my tables... and I am one of the most forgiving GMs I know. This was during the 4E D&D Living Forogtten Realms campaign, so it wasn't like the player could kill the campaign... but he sure made it not fun for the rest of the party.
He was known for playing characters who served themselves and only themselves. He didn't get the 4E system. The very first character he played, was a 4E Ranger (from the PHB, not Essentials). The minute he found out about Double Strike, he was in love. Up until he discovered that the Ranger had no self-healing ability.
He tried a number of characters. The one that caused the TPK was the cleric that refused to enter combat, refused to heal anyone except for himself, and generally was a complete obstacle to the party. The party entered into combat and tried to get him to help, but he refused to even do so much as drop a healing word on critically-injured teammates. They all died except for him... until the monsters found him, whereupon the GM called it a TPK by fiat.
The last straw, for me, was during a low-level mod set in Waterdeep. The situation was an ambush in a theater. He was playing a paladin, and had pretty much shown his usual colors, up until the archers on the balconies started up. He panicked, and dived into the nearest cover he could find: the orchestra pit. Where he hid until the fight was over. In the meantime other characters managed to withstand the arrows, chase through the theaters to melee the archers and eventually drop them.
He had to leave the session shortly after that, whereupon I called the game and said we'd try again... which we did, minus the trouble player. And a much better time was had by all.
We had several people try to help the guy understand the rules and set him up with characters that suited his playstyle, but it seemed like all he wanted was an invincible tank with the largest bow in existence.
I know he went to the PFS group in town, but they got tired of his antics there too. I don't know if he got banned there, but I do know many of the PFS players in town refuse to play with him.