Dock Jumping Again

Kastle hasn't been able to swim, or been near deep enough water to do so, since last summer when he was a baby puppy. He was willing to go right in so I was really excited. Unfortunately, he bumped himself really hard in the legs a couple of times going off the dock (instead of jumping, he was sliding - which was the problem) and it was really cold after awhile and he was shivering. At the end, he didn't want to go in the water at all. Hopefully next time I bring him out it will be warmer and I'll stop while he's still really excited. Handler error :-(