Wor Lass (that's my missis) works with me for five days of the week, from 9.15 am till 2 to 2.30 pm. I then normally drop her off and go out and work by myself.
If I worked Wor Lass past 2.30 pm her nose would start bleeding, and she'd make me do more housework; which would make my nose begin bleeding.
She gets all the school holidays off (not because she's 12 years old mind) apart from a month during the Summer Holidays when the local leisure centre runs a play-scheme which has timings similar to school.
She doesn't find the work pleasant, but she realises it has its advantages. In a month or two she'll be training for the Snodonia Marathon and she's decided she's not going to work Mondays, so that she can recover from her long 'Sunday run' (at present she runs 18 miles every Sunday morning) and probably gets close to running 40 miles per week; she trains five or six days a week.
No other 'employer' would agree to this!