I gotta say, I have done this a rare couple of times in poker tournaments, only because I'm so close to being paid in the tournament that I don't want to risk losing to a subpar hand. Anyone else done this? Or if you haven't, what was the toughest fold you made in a game pre-flop?
It's rare, but there are some spots in which folding AK is 100% mandatory.
For instance in a satellite 1 from the money, you're folding just about every hand pre-flop (in some cases even aces) because the payout is the same.