
This was also a controversial subject when Steve Irwin "The Crocodile Hunter" would get up close and personal with the animals in filming his documentaries. His life was ended when he was stabbed in the chest by a stingray. To me, if an animal is tame enough for picture shoots at the zoo, visitors should at least be allowed to pet them. It's obvious when they're cranky because they'll move away from people so you make sure they're on frequent rotations for shifts. I think once you've been able to make a connection with not only sight, but also touch, you'll want to make sure that these animals are preserved for future generations (though in some parts of the world, they're not in danger of extinction).