Well monetarily jammed; when taking off from an elevated pinnacle pad with all doors off in R44 and the 13 yr old girl in pax seat gets a fright and levitates off the seat and lands on top of my arm and the collective. seat belt made no difference. Good thing she was light and i was sufficiently adrenaline fueled to levitate her back to her correct spot, if we hadn't been on a pinnacle it would have ended in tears. With a note to always be suspicious of teenage children, and the aircraft in the hangar, an EMS ship starts doing a search pattern overhead my house I realize she had also set of the EPIRB button in front of and under the collective. So they land and I explain it all and they have a coffee and go, taxpayers dollars in action.
Back in 1985 had a collective on a R22 jam from mid way to full up but happily it would go all the way down, something to do with incorrectly rigged bungee cord in there somewhere.