Wrong Sort of Mouse

Some of you will know that I have been plagued by mice recently. I even caught one the other day, but it got out (probably by bouncing its skull against the fishtank lid until it lined up with one of the < 1"-dia holes. Like one of those puzzles where you have to get the little silver ball in the hole.

Well, since then I've removed two pathetic little furry corpses from the traps. (I'm not squeamish: I'm sentimental). And tonight I captured a third, which was noisily making its home in a box of computer peripherals.
( You know those sitcoms where a mouse runs up someone's trousered leg? )