Well, if eating a mouse was gonna make you sick or kill you, it would certainly be if you left it sit for a couple of days at room temperature.

People do eat guinea pigs and those are pretty much rodents. I have heard many accounts of people eating rats. Mice I would imagine are more like popcorn or chips than an actual meal. One just ends up making you hungrier.

If it came down to survival, I don't think eating a rat or mouse would be an issue, but I'd for darn sure be smart about it, just like with squirrel or rabbit. Kill it quick, gut it quicker, and chill or cook it within an hour.

Gale