Bollox to what LL thinks...with respect like...but isn't your well being a tad more important than a bit of old furniture.
Anyway, you do what I did yesterday, and play the "oh how stupid I am lah de dah de dum' card, and then
quickly change the subject to something she wants to hear.
It werks, believe me.
Were you agitated at the time btw, cus that's always a good one to chuck in you know.
One has to turn these discussions around and try making out that it wasn't really all your fault.