LGF if you are talking about ‘removing pedal injuries’, you well know that there is a wealth of ways in which severe damage can be inflicted on the body. An old favourite is trying to release drive side pedals with the bike in the workstand, and not noticing that the moment the pedal thread releases its grip, your hand will be mangled by the large chainring. A classic and extremely body-adjusting one, and good for new combinations of existing expletives. An unusual one but governed by Murphy's Law is the ‘hand jammed between crank arm and chainstay’, where you don’t notice that the application of force on the non-drive side will, when the pedal thread gives, will send you LH fingers down to be jammed between crank and stay. The ‘head on top tube/handlebar...’ operates when you are standing over the bike, the pedal gives up unexpectedly, and down you go onto the bike.... Of course the many ways of creating injury and the and severity of welts, bruises and general mangling increases by the equation Force x stuckness - and is modified by the equation Force x stuckness x elaboration of the ineffective arrangement of tools used to try to release things.