wouldn't think that sticking your hand into the water to grab something that was falling in would chill you to the point of hurting you. drop cell phone today into hole reach in a grab it--a great save-- but a couple of minutes later i had to leave because my hands started to cramp up and began to hurt really bad.
the sudden plung into the ice water with the hand caused the muscles to ball up/knot up and tear in the back of my left hand. the hand is swelled and black and blue.
the doc says that is what causes heart attacks when someone suddenly gets wet with cold water and it does have to be freezing water.
