Mike Tomlinson quoted:

fire fighters came to his rescue early this morning - they used a
hydraulic pedal cutter to remove a metal ring he had slipped over his
dangly bits

It would still be a bit worrying when they said, "right, we've just got
to slide this thing between the ring and your knob"

http://www.bigredtruck.com.au/dragon-force-universal-pedal-cutter