[speeder]

So what does the "cart girl" do, exactly? Is everyone supposed to tip her?

I agree with SM that she should not be discussing how much some public figure, (or anyone else), tipped her for her job. That would be a firing offense on most jobs. And she shared it with a guy who has the biggest mouth on earth, you. Twitter to about a zillion people and now here...you're actually trying to litter the internet with this important info.

I'm not even sure she deserved a tip. And yes, you're an asshat.