Blown driver

Well, it could be the vacuum, or dusting, don't blame the house keeper, I can't tell you how many people have walked into my home and immediately wanted to touch the drivers or push them in.  Unless you take the time to explain what seems normal to us, they won't know.

I agree with Erik_squires.  Sometimes we assume that other's know how to handle themselves around our equipment and that leads to trouble.

I had a home I shared with my significant other.  She had a house keeper come by ever other week.  I specifically told her to tell the house keeper to stay away from my equipment, especially the turn table.  Did she listen?  no.

She tried to dust the turntable.  Took the cover off and guess what?  you know.  Broken cartridge.

vacuumed the speaker drivers huh?  wow.

enjoy

It could be anything, vacuuming or aggressive dusting could have left something in the voice coil.

Does she wear one of those cute little French maid outfits?

If affirmative, how much did you say you were paying her per hour?

Hi,
try to find out if she enjoyed playing it loud just of curiosity.
Then you have some of your answer. If vacuuming.....