"Feeling... LONELY?" From the maze in the 7th Guest, every time you come to a dead end. It got so bad, I was muttering "STFU, bastard." every time I heard Stauf say that.
In BG, I had that effing downer mage, Xan, in my party, and every time we entered battle, I'd hear, "We're all going to diiie..."
On the other hand. Minsc was awesome! "Go for the eyes, Boo! Go for the eyes!" and "Boo says, WHAAAT?" "Laugh while you can, evil! You won't be laugning long!" and, of course, "BUTT-KICKING! FOR GOODNESS!"