Pretty basic question directed at the new players starting off...Have you ever folded Kings Pre-Flop. I have to admit, I've only done it once, when I was certain my opponent had aces in a cash game, luckily I was right. However, I've made the call more times than not too. This is usually playing cash, here locally in Vegas. I will know the guy is a rock, and the only way he'd put his hole stack in would be with aces, yet I've paid it off a decent amount of times.
I almost think this can be considered a beginners mistake, falling under playing big hands too big, or making spite calls. I've been playing quite a few years now and I still make spite calls.