ridiculous or dangerous ??
tried to windsurf on snow with an F2 Comet

yeah, like that was gonna work
since then built an ice sled and many, many versions of the snow sled
the first year broke my shoulder on the ice - guess that was the most dangerous

out on ice with a prototype sled in 30 to 50 km winds and a 7-oh battened sail
was going faster than i ever had on water - obviously - duh ...