I've witnessed an UW photographer whack a porcupine fish multiple times over the head with a large light to try and get it to inflate. After the dive I mentioned (it was a diver with the group that I was leading) quietly that stressing the wildlife wasn't the best thing for them, and he might want to take this into account. He didn't take it very well and basically said that the critters were lucky that he didn't have a speargun with him. We don't get along very well anymore.