My sons dad and I are not together, he stays over night with him twice a week. On occasions (once every 3-4 weeks) I am not able to pick my son up from school on the nights he goes to his dads due to being at work. Am I being unreasonable asking his dad to collect him from school or seeing if his grandparents can? I’ve asked a couple of times and his dad has been annoyed that I’ve asked and said I shouldn’t be working if I can’t do the school run. He lives a 5-10 minute walk from school and drives so that’s not an issue.