I have been swimming in the icey water when i was about 20. i was going to play some hockey, just skating , dribbling the puck. Must have been a thin spot. Ill tell you one thing, you cant tread water with skates on!!!! and hockey pads Trying to get out, ice kept breaking. I was in at least 5 minutes before they heard me yelling,, they got me out by making a chain of bodies and handing me a hockey stick. By the time i got home, had to cut the laces off to get skates off. To keep your head on strait is pretty tough Now, when ice fishing, I keep this moment in the back of my mind..