DM asked to have DS(3) for the day, she wanted to take him out so asked us to install the carseat in to her car which I did.
To be clear, this was a visit requested by her, this is not regular childcare (which she doesn't do) and we do not pay her.
She called me a little while ago to say the dog has chewed and damaged the carseat, but its ok because she has bought a replacement. DSs original carseat is an extended rearfacing seat which a 25kg limit. The one she has replaced it with is a forward facing nania brand (cheap, shit and have failed in some tests). She doesn't see the problem.
I'm hacked off because the dog is generally lovely but known to chew and has been known to do some substantial damage to my mums house - destroyed the bath panel, chewed the TV ariel, broken the hose on the washing machine and flooded the kitchen etc, and she CHOSE to leave the dog in the car (where it chews the seats and seatbelts) knowing it was a risk.
I'm also hacked off that despite me explaining several times (prior to this) that the carseat we chose is very safe etc she has deliberately bought a cheap crappy one. She feels all seats are the same and that it is time to forward face DS anyway. She has form for buying cheap and knock off stuff because she doesn't like spending money and always likes a 'bargain' (she is comfortably off).
So now I have to replace the carseat 5 weeks before Christmas whilst on the unpaid bit of mat leave.
AIBU?