I went out with a man for a couple of months a few years ago who was all sweetness and light and then literally disappeared overnight - no calls, no explanation, just gone - how rude! I wasn't heartbroken, but I was seriously miffed.
Anyhow, I was out in town a couple of months ago and there he is, standing a few yards away from me! He saw me looking and waved, but I just carried on scanning the pub, as if I hadn't even recognised him. I know it was childish, but if I managed to make him feel even slightly insignificant, my work here is done! ;0)