We have a nice zoo here. Kids don’t run wild or tease the animals either, that I have seen. I think the reason is that we are very proud of it and there are workers and slews of volunteers everywhere watching those animals.
fyi - a guy on Nancy Grace just said the guy killed wasn’t the first one attacked - one of the survivors was taunting her and was actually attacked first. The other 2 ran away at first, and then the one killed had run back to help his friend and was then killed.