So I went to buy a new mouse today. When I couldn't find what I wanted I asked the adolescent man in the shop and he took me to the section where the "mouses" were displayed.
It's not really something I've thought about before (not ever having had to pluralise a computer mouse), but is the plural mouses or mice?
You'll be pleased to hear that I resisted the urge to interrogate and embarrass quiz the small boy young man.