THE GATHERING STORM

I can't recall where I found this but it was mislabeled. The caption said something about hearing music you don't like but find impossible not to move to. I decided it more closely resembled the moment just after the arms are crossed and the toe tapping starts. Stand by for heavy weather.

Not Happy

Your position has been established. That's literally the lashing of the tail prior to the pounce. From the excellent book, Ringworld by Larry Niven, "Louis Wu, I found your challenge verbose. In challenging a kzin, a simple scream of rage is sufficient. You scream and you leap."