Ouch..... Some of those crashes are rough, haha.
80 mph water skiing can certainly leave a mark. That would be some video.
We were teaching my little brother to water ski for the first time and got him up for a few seconds before he went down. But, we forgot to tell him to let go, and we drug him along with his face just under the water till we could get our grandfather's attention to stop the boat. The little guy didn't talk for awhile.