Heck yea, I burned myself on one. It didn't look hot and I didn't think about it and grabbed it full grip.
Needless to say, it was a goner when it cooled, it was shorted or whatever.
My hand ached all weekend, so now I always check them before I touch them. It could be a frozen winter day on a car with no battery and i still check it and proceed with caution because that really hurt.
