What you are saying there is that in order to save a few quid per year she wants an easy way to turn the fan off even if that wrecks the decor, damages her clothes and furnishings, and risks her health.
Effectively Yes. Plus here bathroom never used to have a fan that was on 24/7 before it was renovated by the council a few years ago.
Wait, so it looks like this?!?!...
LOL, Very funny. Should the fan not have a 3 pole isolator anyway, or is that only when fed of the lighting circuit?