The word petard comes from the Middle French peter, "to break wind" i.e. FART!
So odd that such an uncommon reference is used exclusively by thelimeyone and yourself? No other posters here... EVER! Is there a connection there?
Why do you only post on a single board on iHub? I don't see many pumpers that focus on a single board... It seems that you have an obsession with this board.