I really don't like this. I see people do this *all* the time, and I can't count the number of times they show down a monster.

A good player will open up his range against you here thinking you have AA and try to flop a weird two pair on you (at least, provided you both have deep enough stacks). And since you'll think that no one can put you on AA, you'll be more willing to pay it off than you might normally be.

This is like someone tanking on the river with someone else betting into them when the flush shows up, pretending that they're deciding between calling and folding, before finally saying "you don't have it", and then shoving.