My Dsis has one dd aged 6. Dsis works fulltime and her dh, my neices father works fulltime, from home, (in IT). Neice attends school a 5-10 minute car ride away. BIL drops her off each morning and then picks her up on a Monday ONLY. The other days of the week my mother who is mid sixties and works from 9-2 each day, picks up neice and takes her to neices home..(where BIL is working 
Then at 4.30 or so BIL takes my mother home in his car, picking up sister from work at 5pm.
So basically my mother works 9-2pm, then catches a bus from work to neices school, picks up neice, walks in ALL weathers the 30 minutes back to neices house. Then looks after neice till 4.30 ish when they all leave in BIL's car to pick up sister.!
I think they are taking the piss!...Bil is sitting there with a bloody car outside whilst my mother is walking to and from a bus (long walk) then 30 minutes home in rain/sleet/snow.
Why can't he nip out and pick up his dd himself..she isn't a baby. he could still work till 4.30 with neice there.