It's been a while since being on this site and hadn't noticed the reactions.
Sorry if I offended anyone, but I know what I saw.

I think it was the summer of 2009 if that makes a difference.

I live in San Diego and frequently visit our zoo.
I was there a couple weeks ago and in the entire reptile exhibit I didn't see any feces or urates, skins...anything.
One of the employees I talked to said they walk through every day before the zoo opens and check for that stuff and tidy up as needed.