Hee hee... I know Mr Todd and he's a decent guy .... Doesn't surprise me that he let them zap him. As for the Instructor with the Taser...if you were given the chance to zap your boss with one, wouldn't you smile???
I can vouch for the fact it really works well, and as for the smug bit............I recon there should be a bit in the training for when you release a silly little giggle.