Or perhaps just a standard upsell.

Thinking with the small head, I decide to see an unreviewed, Craigslist girl.  I've been seeing her ads for a while and I decided to go for it.  I call this morning, say I'd like to see her around 4:30, get her price and approximate location.  She says call about a half hour before I'm ready.  OK, no problem.  I call her at 4:05 and it goes like this:

Me - Hi, its dakotah, I called this morning, I wanted to check to see if you're still available at 4:30.

Kim - Sorry, I'm booked until 5:30.

Me - Sorry, to hear that, will you be in town tomorrow?

Kim - Maybe, but I could cancel my appt. if you make me a better offer.

Me - No, I don't think so.

Now I don't blame her for booking someone else - a bird in the hand..., but I thought it was pretty low to offer to break the appt for a better offer.  Just a reminder, its a business guys.  If you think anything else you are kidding yourself.