We've had a nanny, the same nanny for a number of years. She had maternity leave and we allowed her to bring her own child with her.
I've noticed very gradually that she is slipping in her duties. She doesn't tidy the children's bedrooms, she doesn't tidy up the toys properly, things are being damaged by her toddler but she does not even offer to replace or even acknowledge (eg I saw him chewing one of the DCs books, he's ripped books etc, normal toddler behaviour). I'm getting increasingly annoyed as I've mentioned things (reminding her to tidy), but after a brief improvement it always slips back again.
I'm just venting really as I know I need to talk to her but I would be interested to hear in people's experiences of this sort of thing - have they been able to improve their nanny's behaviour or is it time to let her go...?