How not to play when it's heads ups (complete HU-HH. Long)

hand 18: you should be doing backflips when that A flops. If you felt confident he had no hand, or was drawing to less than 5 outs, you should have just called the flop. A8 is good there so often, and if you had called, the tourney may have been over on the next street with him only having like 65k behind.