Frankly, I doubt that's the way it happened. They're obviously at the front, so they probably just put the grenade there while playing with the cat. I don't see the danger in this, I doubt it can pull the sprint all by itself.
Not all germans were bad you know. They might've thought this and that about certain humans (and there is no excuse for that btw) but why would they use a grenade to blow up a cat? It makes no sense, in the sometimes boring life at the front it could be good to have an animal to play with. If you blow it up, you can't play with it anymore.
For the record, if you think that nazis were animal haters, Hitler had a dog named Blondie. I'm sure you already knew that, but I just wanted to make my point.
All nazis werent bad.....towards animals at least.
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