I had thought of doing this for nearly 2 years now. My very good friend has done it and her boys liked it okay.

I was at the zoo this summer and saw the 2 young adults (maybe 19ish) with probably 14 kids. WAY too much chaos for me, I just didn't feel like it was supervised enough, for ME. Sadly, there are some real weirdos in this world (I am not referring to the young adults watching the children). I would probably spend the time worrying myself into a tizzy. So, I won't be doing it.