Re: Rant: maybe I should have taken up the guitar instead !
I would have probably behaved much of the same, if I were in his shoes. Just because you've got a fat roll in your pocket doesn't mean you're entitled to test out different heads and do whatever you'd like w/ their drums. We're talking about very expensive drums which they still need to try and sell, if you're not going to buy them in the end. Those heads need to sell too...and they're not worth anything to a retail store if they're used.
Contrast this with Guitar Center, which allows you to beat the hell out of the drums on the floor. The floor kits look terrible and the heads are destroyed. Big, greasy hand-prints everywhere, dings and dents all over the drums and hardware, big pits in the heads. I would *never* buy drums off the floor, from them.