BP, you've covered the ground with your dating rules. :P They definitely do for my ex. 
Hmmm dating rules I've learned...
Unless you are opting for a night stand and you know the other person is, don't fuck on the first night if you really like the person and want a real relationship. :P otherwise you'll be taken advantage of-- taken for granted. There's STDs and pregnancy to think about, too.
Be more distant, but show your interest-- let the date pry acceptable info out of you with his/her own curiousity. Mystery is sexy.
Trust your date to be capable of what she/he has proven to be so. Even if it's bad. You can't change the person.
Know when to cut your losses-- move on with no bad feelings. It's just a lesson learned.
Run really fast if the date has extra baggage that he can't handle yet and creates problems for himself (drinks, follows the bad crowd etc). Chances are he'll want you to take care of him like a child. Same applies to dates who have proven themselves to be immature-- have a lot of growing up to do. In both cases you'd have to act as the parent and the lover. 
