Like I said earlier, I somehow question the notion that these zoo keepers are sending them urine collected from a tiger, and whether that's REALLY tiger's urine they're bathing in and drinking.. :)
You definitely don't know the tiger urine collecting business. you don't ask a tiger to urinate. You have to wait for it. Tigers have weid behaviors before they urinate. They turn their rears to visitors or whoever the human beings are and raise their tails. That tells you it going to come. They shoot urine like a dart, extremely smelly. The collectors use something like a sponge sheet to receive the urine. You dont have to go into the cage, so there is no way you will get hurt.