I actually don't really like the concept of a Pretty Woman moment. It doesn't happen too often, but when I plan to make a purchase and go into a store where I'm not helped out (perhaps I'm wearing my workout clothes, or going in with my kids) I will vote with my dollar and leave.
This is especially true in cases where people work on commission. I'd rather avoid the amazing moment just to make sure that the snobby staff didn't get a dime of my money!
..that being said, it would be interesting to see
