Clamp-Hanging?

Imagine to clamp at the same time as you stretch/hang heavy, wouldn’t that stretch your inner penis out from your body?
Could it be dangerous? I heard that hanging only should be performed while being flaccid.

I added a picture to show you my theory.

I think that would be very dangerous!! You should never hang or stretch while erect or even partially erect!

Precisely, only put some blood in the head while stretching to improve your grip.