If she asks for YOUR number instead - don't fall for this (relates to Closing).
If she still refuses to give you her number - a strategy of covert persistence.
If she says "Why do you ask?" - read how to recover (relates to Patterning and Eliciting values).
If she asks "Are you trying to seduce me?" - this isn't trouble actually (she likes it:), but you still need to know how to answer.
"Have you ever...?" gets busted - what do you do, if she says "No" in response (relates to Patterning).
Ejecting - you don't always have to close. Know when to cut your losses.
If she cancels a date - she screwed you (and not the way you hoped she would:). Now what?
If she doesn't return your phone-calls/e-mails - a zero-tolerance policy.
If she shows disrespect for you - How to deal with (dump) her and why.
The age difference problem - you shouldn't anticipate it, but its good to be prepared.
Nothing works with the girl - and you tried all your techniques. But there's an ace up your sleeve:)
If she says "Let's just be friends" - looks like you're in trouble, read how to recover.
Dealing with rejection - why you should never get rejected and how to cope with it, if you do.
But I really want this girl! - read why this is such a self-defeating attitude.