They're not one hundred percent sure that the proteins in komodo dragon glands are used for envenomation. The multiple types of highly virulent bacteria in their bite, however, are undisputed.

How this moron thought he could build up a resistance to them (or, indeed, any possible venom) is mind-boggling, especially as he was intending to do it, not under controlled lab conditions and a doctor's supervision but alone (in the non-reptilian sense) in his home. He might just as well have tried to build up a tolerance for bubonic plague. Or knife wounds. Once again, Darwin is vindicated. Sadly, the animals paid for the human's stupidity ... as per usual.

Of course, none of the folks on that show are overly logically blessed. Remember Antoine, the guy who raised a tiger in his New York apartment and got the hell bitten out of him for his troubles? (And who wants to regain possession of his baby as soon as he can.) He was quoted as saying, "“Ironically we were both placed in cages for the first time," following his arrest. I guess he doesn't consider that Ming - who would be roaming around a JUNGLE in a better world - had been in a cage his entire life. Logic is not for everyone. :D