The only mistake of whoever took the video was posting it on the internet. I am not quite sure if they supplied the name of the patient as well (I watched the video from Liveleak, not from Youtube) because THAT would definitly score a suspension for the physician or nurse. What if a student took the video and posted it? How will the law apply in this case?
Anyway, I admit I did smile when the surgeon, upon taking hold of the canister, opened it and attempted to spray the people around him. I don't know though if I would have done the same. It was made in jest, of course, given the, uh, weirdness of the situation before them. This isn't a rare case, of course. A similar incident happened last year in the Philippine General Hospital wherein a bottle of catsup (the story went nasty and said the brand was PAPA) was found lodged in a similar fashion.
A word of advise for those who love to experiment: DON'T DO IT. Seriously.