Pac-Sans
A guy who's so brain-dead he changed his name from 'Froggo' to 'Pac-Sans'. He's not smart, but he's got a weird sense of humor.
Post: 'I have a pet rock. Its name is Dave.'
DM: 'I'm not stupid. I'm just... temporarily not smart.'
Comment: 'I ate a whole cake. It was a decision.'