Floor!!!

[AwwInBaby]

so im playing at a casino in NY, 1/3 NL 300 MAX while waiting for room in a bigger game. Im playing every hand for fun and making it known im willing to gamble. I've played less than an orbit and got two outered once.

A euro donk who i was familiar with sits down, and i raise to 15 with J7o. He calls in the BB. Flop comes J 9 6. He bets 15, i go all in for 300. He is about to muck, but i tel him im gambling and want action etc etc. Finally he calls me with T9. The turn and river come Q K, rivering him a straight. We both table our hands, him not realizing he has teh straight, and the dealer doesnt either, so she picks up his cards, they touch the muck, then she goes, oh wait, flips them back over, notices he has the straight and ships him the pot. I call floor, to no avail.

Am i wrong to flip out here?