I had the line-wrap thing happen to me during a pitchpole on my Hobie-18. I was driving from the rear corner doing the wildthing when the boat dove in a gust. I slid down the tramp in the initial stuff and as the boat was going over and I was trying to climb back I found I had been snagged around the ankle by the jibsheet. I was able to free myself before the boat went fully over but it was close. I wonder if I would have had the presence of mind to cut the tramp with my knife to breath instead of continuing to struggle with my caught foot. Even with a sharp knife I wonder if I could have cut the line easily.

Most of the places we sail the regularly the mast will hit the bottom before the boat fully turtles. But out in the middle of the Bay....