this is the background...ds and dd both have an after school activity on a Wednesday's activity is 4.15-5.15, and dd's is 4.45-5.45.
I work rotating shifts which mean that on 1 Wednesday every 10 weeks I start work at 4, but dh is supposed to finish work, fairly locally at 4. I have an arrangement in place for my dad to be at my house for ds arriving home from school, to get changed and my dad will drop him off at his activity at 4.15.
dd comes in later (at secondary) and in theory, dh should be home to take her to her activity at 4.45, before doing the whirlwind pickups that I usually do.
Today is the 1 Wed in 10, and he's just phoned to see what arrangements are in place for the kids...and has said he'll take dd to her class IF HE GETS AWAY FROM WORK ON TIME.
He has no meetings etc, it's extreeeeemely unlikely for anything unexpected or unscheduled to happen at his work...so for 1 day in 10 weeks AIBU to expect him to make the effort to get away from work on time? (and yes it's always me who has to request a late start at work if he does get held up at work on my working days)