The worst blister ever?

I agree with Jake - there's really no need to inflict this sort of thing on yourself - not unless it's a matter of survival.

Also, why did it need a video?  A photo would have done.

What a twat!

Unless you're in conditions outside your control, such as a forced march while serving in the forces, there is no excuse for knackering your feet in this way.

Had this idiot done any walking at all before inflicting this injury on himself?