I am a French paramotor apprentice, actually on the 3rd flight.
Since the 2nd flight, I have encountered a problem (not to be French !), I have an irrepressible, irrational desire to sit down from the start of a slight lift of the wing. So I stop running and find myself on the ground on my buttocks.
Of course, this is very dangerous, fortunately the engine is killed in time. I don't understand this reflex, - perhaps from the experience (2001) of the trike (take off sat on a seat), - either from the seat of the harness which unfolds and goes down under the buttoc