the worst the kids ever did for me was to remove most of the keycaps on the Model M (anything they could pull out).
And then replace the keycaps. Not in order, of course.
The most ridiculous part? I didn't notice. I don't look down at the keyboard when I type, unless it's a key I don't use often. I think I was looking for a hyphen or equal when I looked down and discovered the swapping.
And if anyone is wondering, kid fingers are small enough to fit the spaces between the keycaps, but adult fingers are not. So it's much easier for the kids to pull out the keycaps, than it is for me to pull them out in order to put them back in order.
I think she blew off not because of the hygiene thing, which is a reasonable request, but because she felt that you cared for the keyboard more than her. It's the impression she gets from your statement.
Good thread.
I don't have much of a story yet but that's because my PC is in a room upstairs and the family hang out downstairs. So no one ever goes into the boring room but there was once my 2 year old thrashed her hands on the keyboard. I cringed hard and had to gently guide her out of the room and distract her with something else. Fortunately the wife was not there.