When I was a child, we used to have pet mice. The first one was called Snips and I don't remember how or why, but we had it for a few weeks and then it died.
According to Grandpop, who is not the most reliable storyteller...no, that's not quite true. He's a reliable storyteller, he's just not the most reliable truthteller. According to Grandpop, Snips didn't die of any ordinary mouse cause of death.
Snips died because he got in with the wrong type of animal.
Again, I'll stress that this is all according to Grandpop, not something I saw...