Meat?? We've not done that here, but well, perhaps my kids slipped pepperoni in their cage when we first got them. I removed the one dead when I found it, but they had eaten part of it during the night. It was the sickest thing because all the ones that had been eating it died as well. Like I said, though, we've not had any others die since. We've switched stores, though, and I really am hoping to do away with them all together soon.