There was this one guy.. in SotN my old clan, i dont remember his name, had joker in it I think. Anyways, one day he came on my server and left a while later.
The next day he says I made his blockland screw up and he had to reinstall everything. He joined and left for about a minute, saying things like "U sux" "I h8 joo" before leaving. Needless to say, I banned him.