Stopping smoking by cutting off the fingers of smokers also works as they cant hold or light a fag........
I think we all agree that this problem is psychological as well as diet related. IMHO, causing someone to crap themselves if they fall off their diet doesn't help particularly especially when they already have a low opinion of themselves.
Serious fat bastards have a range of issues they need to address
I would rather that weight loss was used to reinforce a positive view and help in changing lifestyle and outlook allowing other issues to be addressed in turn. Keeping people in the program is, IMHO, more important than teaching them a lesson