I really like Steve Irwin. I think he'* a good person (a little odd, but oh well) and I don't believe he'd ever purposefully put one of his kids in danger. I think what he was trying to do is give his kids early exposure to all kinds of wildlife. If it were my son, and my croc, I would have taught my son to respect and enjoy the croc, from a distance, until the son could safely handle the situation. There'* nothing wrong with introducing kids to wildlife, but it should be done at small and age-appropriate steps :P
He just made a mistake. he could have handled it better by admitting it, though.
In any event, I still like him and I think he'* doing a good job bringing awareness to the needs of not-so-attractive wildlife.
...here'* to ruining yet another humorous post with my holier-than-thou clinical babblings