Guys who can't *not* talk about one subject for at least a few minutes (even worse, something i know nothing about or don't care), poor grooming habits (this includes bathing, dental care, etc), arrogance, chavinism, racism, religious zealots (i admire people of faith and conviction, but when things start getting a little bit Deuteronomy-like, i tune out), drinking too much, unsafe driving (if you've been in as many accidents as i have you'd understand), and no musical ability or appreciation for music. Not that he even needs to be musical, but if he can't at least respect my tastes, he's a bad apple, yo.
Am I too picky???
Good.....