I don't usually on normal sailing and gibes, perhaps once a year.
In this case and other occurrences, it happens whilst trying stuff (in this one, aggressive board 360 through a gibe) and I seem to concentrate on other matters such as foot placement. Happens also on some flakas.
Still, it happens. The scar is HUGE and colourful - and well deserved.
Hence my time to write in this forum 
hooking up in the air overpowered on a race sail with seat harness is no fun when the board is starting the nose first descent and your back foot comes out of the strap. Every now and then... ribs twice, several broken battens, broken board, bruises from collecting the board... 
Saturday - set of the day (well probably not but thats what I'll call it) 25-30 knt gust - stand a bit upright as I flick the sail and bingo hooked in splattered , missed the wave but had a good laugh cause I was reading this post on Friday and reflecting on the fact that I never seem to do it anymore
Never say never
