Great posts so far. Here's a few new ones:

1. Berates taxi drivers when they don't take what he believes to be the absolute fastest way to your destination.
2. Belittles those in what he believes to be 'lesser place in society' than himself.
3. Arrogant
4. Has always wanted to buy a vanity plate with the letters AUSEM on it - stands for Always Use Someone Else's Money
5. Frequently forgets his wallet when he takes you out on a date.
6. Complains about his job.
7. Complains he doesn't get enough vacation time.
8. Complains he can't get out on the golf course enough.
9. Stonewalls/walks away when you bring up a relationship problem or a boundary that he's crossed.
10. Nothing is ever good enough for him.
11. When announcing his Christmas list, specifically asks for the most expensive brand.
12. His father has disowned him.
13. He's never lived on his own. (note - some manipulators can get roommates to do everything too. Not just their mom.)

Well, I could go on but I have to go now...