Telling her your pants are velcro for "quick release".
Phones. Turn them off business people! :P
Contrary to popular belief, having sex on a first date is bad.
Answering your cell phone ;-)
Bringing along your parole officer
Telling her, "You can order anything you want...on the Kid's menu"! ;o]
Happened to me about a month a ago. Had a nice coffee first date and then sat in his car to talk. He wanted to play me some songs that meant something to him, but they were all songs about his ex's....'oh this one got me over that relationship, my divorce' etc. So I'm supposed to be in his attention, and he's just still remmebering or fantisizing or remembering his lost luvs... What a dumbass! First and last date...lol
One of those unexpected boners.
Getting the news that your brother has died,and just as you're about to tell your date they say they have to leave cos their dad has passed away...
******* off the other..
Gas, talking about prior relationships, and mentioning how cute your kids would look.