I hate all losing hold-cards, saying that I sometimes play them blind, I was once heads up in our local pub tourney, I had around 60K in chips against the other player who only had about 5k.
I dealt the hold cards and when he looked at AK he pushed all-in, I snap called and he said "you have not looked at your cards" I just replied "I don't need to" and I went ahead and dealt the flop turn and river cards, all bricked for him so all he had was Ace high, so I turned my cards over 6/2 and I had paired the 2 on the river.
He accused me of cheating and never came back but my reason for not looking at the hold cards was if I had looked I would have folding the winning hand.