My nanny used to work for me 5 days a week until I put DD into nursery for 2 days. When that happened she started to work for another mum for those 2 days.
It's an independent arrangement and not a nanny share. I pay my nanny hourly (at her request).
In the last couple of months the other mum has started to ask my nanny to do things for her on my days, like collect her DD from school at 3pm and then look after her until the mum gets home from work at 6pm. This now happens every week & she also calls for ad-hoc things like yesterday (my day) she asked if my nanny could pick up her 10 month old from nursery - she doesn't pay my nanny for this either & it also happens on my time. So I'm paying her to look after somebody else's children.
Now, of course, I don't mind helping out but it seems that she treats my nanny as hers even on the days she's not paying her (and I am!).
I don't know whether to just go with the flow and think, well it's nice that DD has a little playmate for a couple of hours, or think, well the mum should at least have had the courtesy to ask if I minded and she's getting lots of free childcare at my DD's expense.
I think really it's just the fact that a) she's not paying my nanny for her work & petrol costs and b) she didn't bother to ask if I minded (which really I don't tbh, mums need all the help they can get).
Mumsnet verdict?