Most tilting hand ever

[dooom]

Was playing live tourny last weekend. A8s (or so I thought) on the button, raise it up 3x BB. Get two callers. Flop Q 8 3 rainbow, checked to me, I bet, 2 callers. Turn is a blank, checked around. River is another 8, I think I have nut trips. First to act bets 1/4 pot, 2nd player calls, I value raise to pot. Called in both spots, realize I have A high. Proceed to then tilt off the other half of my stack.