I've found that mice have no chance against a shop vac.
There's a thought.
Thanks for the idea. I reckon I'll go to that in cases where the cats don't seem serious-minded enough. In general I actually prefer to let them hunt. They tend to get bored, and it allows them to engage in their very favorite form of recreation. Also pay for their upkeep, at least a bit.
When I get a ferret again the problem will probably go away pretty smart-quick. I've had, if I recall correctly, one mouse get into the house when I've had ferrets. I believe they
really dread the smell.