I'm looking for the @Chris J W thread about his injury from a non breaking rope.
Not sure what search terms to use but it struck me (pun intended) as a very nasty situation.
Here it is
worth reading this one as it is educational and quite shocking.
I liked this from Bristol and Argo (not sure if they are still on the cut)
"
Que discussion on how everyone should be using 'dead' ropes on boats, rather than ones with the properties of an elastic band.
The stored energy potential is frightening as you unfortunately found out, who can work out the energy of say 10tonnes decellerated to zero from 1mhp, suddenly given the opportunity to accellerate 0.001 tonnes(figure wildly guessed) of metal ring, so that everyone will realise why they shouldn't stand in line with a taught rope."
Good bit of math work.