All due respect, if a parent is hanging their kid over the safety railing of an enclosure to a group of dangerous animals, thats not a joke. There's a time and a place for horse playing but that's a bit too far.
I'm a zookeeper and I hear things like this all the time. One lady got really mad at me because the lions were sleeping. When I told her lions sleep 20 hours a day, she just asked "cant you wake them up!?". Another guest actually argued with me on whether or not the animals he was looking at were hyenas. When I politely said they were African wild dogs and sometimes mistaken for hyenas he said "I went to college. Those are hyenas". The worst part was he had a kid with him.
Bird: niggerfaggot
Me: I would fight you but thats fair
Bird: You are cracker
Me: Heck.