Kicked

If you are in a situation where you have been dealt an unsuited King/7, and the flop delivers a K/4/2, under most circumstances you would be sitting pretty, and you can internally give yourself a little high five. Of course if one of your opponents has a cat that ate the canary smile on their face, and begins acting like a bully during the next betting round, this means one of two things. They are either trying to use the King on the board to facilitate a bluff or they are holding one of the three remaining Kings.