Every so often when I'm lying in bed, I twitch my calf in the wrong direction and it cramps. If I very carefully flex my ankle in the right direction, I can ease the cramp out. This morning in my sleep-befogged state, I flexed my ankle in the wrong direction. Ow, ow, ow! Needless to say, this woke up daisy_knotwise. I have just about walked the cramp out now. I'll try not to do that again.