I just hate when people try to get Oddball kills in Grifball and make me lose because they aren't playing to win. Otherwise I could care less.
Seconded. People who go for kills in objective based gametypes instead of playing to win the match are FAR more annoying than boosters ever could be. Why play objective if you're not going for the objective?... ....douches.... ...i'd rather play with the boosters. :P