This wasn't a friend, this was a customer of mine. I do not know how she found this out, I was in to much shock to really say or ask anything. The only words that I managed to get out was that I hoped she never does that in front of children because they might try to do it on their own cat. And she said that she doesn't. This cat was full grown and about average size. It wasn't a very big cat, but not small either. Even if the cat does like it, what if it hurts him! I'm curious; I think I might call my vet and ask him.