Oh, I quite like a woman who takes charge of her surroundings and makes a practice of asking (politely if not necessarily all that nicely) for precisely what she wants, whatever it happens to be.
Where I run into the problem area is that I seem to be a magnet for women who aren't merely assertive but who in fact cross the line into aggression and don't hold themselves above expressing themselves by dishing out unwanted pain (slapping, pinching, kicking), and it has a maddening tendency to happen in situations wherein I'm not totally free just to get up and remove myself (weekend festivals, out with friends a long way from home and skint for a ride, etc.) --and of course a guy can't ever hit back, no matter the circumstances, so it's usual that I end up pretty much just having to sit there and bear it for the duration.
I've got a few stories that are real doozies and may start up a "your tales of epic fails" on dates, setups and so on. I'll have to see if one's already on the board first, but in any case I don't doubt it'd be therapeutic, educational and good for some LOLz heh.