@roger,
Quote:Do it, anyway. All our food, medicine, and cosmetics are carefully checked to be sure it's safe for lab mice and rats.
I might have, but this is Japan and the rules are different. The death of one mouse is hardly enough for a major pet food company to bother about.
"Dear Sirs, Very sorry to interrupt your otherwise-smooth daily routine and highly-pleased communications with so many happy customers, but your cat meal killed a wild mouse..."
If I received a response, it might be something like "Our cat food contains a specified amount of the vital nutrient taurine, which is not suitable for consumption by mice and has been known to accumulate in their bodies over time and kill them. Their biology is far different from that of a cat, as we hope you are aware..."
Not to say taurine (which is indeed essential to cat health) was the cause, but just an example of a possible response, if they felt my complaint warranted one.
Often, pets are not considered by many here to be much more than property anyway. My wife and I are held somewhat in awe by locals who hear of our rescues and saves.