Since everyone loves poker stories, here's mine.
Of course I wrestled with this dilemma, as does every other player.
I distinctly remember a tournament a few years ago where I had a big stack, was playing like rock-tight. I raise AK in EP, I look at my HUD and I've been running 6-6 at this table over 50 hands. Another guy who had been playing tight with a pretty big stack, like 50 BBs, shoves from CO. I tanked, and called. He had ATs, the flop came KK3.
I was wondering if I should have folded or not.
Same table, maybe 15 hands later, I have not played a single hand since the AK-AT, I get AK again, UTG. I raise, someone 3-bets to like 10 BBs from MP, I think a bit, shove. He tanks, calls with AQ.
It'd be nice to end this story by saying these two big wins led me to take down the tournament. In a way, it did. I lost an 80-20 later on (I think it was QQ vs. TT) for a huge pot, was down to 1 BB -- and came back to win it.
1. You pretty much have to call with AK if you can put AQ in his range, or small pairs.
2. People you think are tight sometimes lose their minds after folding 40 straight hands.
3. If you are obviously tight, sometimes people will try to get you to fold.