This isn't a joke, really.
My MIL has an annoying habit of bringing round cake/chocolate sweets etc for DS (16 months)whenever she visits.
I've learnt to tolerate it and just limit what she gives him (she was once trying to feed him two slices of m&s chocolate cake at once!)
She visited us over the bank holiday and I was making coffee and came back to find her feeding my 4 m.o DD lemon cheescake. I was suitably peed off but she acted like she'd done nothing wrong.
Now DD is really sicky and I can't help wonder if this has caused any damage?