The fact that he has been bitten honestly means nothing to me. You handle animals on a daily basis, you are going to get bitten sooner or later. Doesn't matter how careful you are-- accidents can easily happen, and animals know when you are having an "off" day.
I think having someone going to the schools and educating is important. Is it better to show someone a snake, educate them about the snake, specifically a venomous snake...or let them grow up ignorant about snakes, so next time they see one in their yard they take a shovel to its head because they can't tell a simple brown water snake or gardner snake from a copper head?
Yes, watching the croc hunter as a child made me want to get out there and wrestle a croc(he DID make it look like fun!)... but I had enough common sense to know I couldn't do it. I learned quite a bit from him--and yep, he was bitten plenty of times...I am glad people put their own lives at risk to educate others about the beauty of wild (and sometimes dangerous) animals.