Cannibalism in rats?

[KMG]

I'm just a little unsure why you're getting defensive and not trying to take any of the blame. It can 100% be pure luck, even if its the first time its happening to you. I'd find a better way to get feeders than to leave them in a cardboard box for 8-10 hours, because that's simply asking for trouble.

You've been waiting to make a first post and that's what you went with. Interesting choice.