I had two kings, so I bet the house. I thought I had it in the bag.
That's a pretty good hand, but you're always just one ace being turned over away from being fucked.
Honestly, with the game's popularity it has become increasingly harder to play in a well thought out manner, because you have people betting in illogical ways given the hands that they have. Going all in with a pair of kings isn't a bad play per se, but since people go all in all the time now with crazy shit in the pocket lots of times you'll get called on it. Never forget that it's a game of luck as well as skill, etc etc.