Bests & Worsts Reviews from Amazon

I ordered this as it seemed like a novel idea to help potty train my new puppy. When I got the package home I opened the lid and a bunch of little flies came out! And the more I moved or touched the grass the more flies came out. Now I have them all over my apartment! That's bad enough but I won't expose my puppy to whatever may be lurking in there. Potential health hazard as he is only 2 months and doesn't have all his shots yet. Returning immediately.