Ah, good memories.

Was throwing out a piece of rope when I remembered this once in secondary school, some guys were playing with some rope and wanted to test something. I don't know if they were too cowardly to do it on their own or what. They asked to borrow my wrist, wrapped the rope around it,

and pulled the rope off.

If you look carefully you can still see the ropeburn scar there :)

Thanks Jun Hui ;)