There is a mum at DDs playschool, she often asks me to pick up her son from school while she waits outside in the car with her other child. I don't mind, but i usually go the opposite way and her son can be a bit difficult (not in a nasty way) to get moving, and instead of being able to focus on my DD and her morning - i have to faff around with this boy instead. She asked me this morning, faffed about it and decided she would pick him up. Great - she is going swimming, put her other child with CM and the pick up time is tight. Other times its because she on the way to visit her mum, take other child to baby gym. She always has pther mums picking him up, taking him to school - i think she is taking the piss.
Would it be petty of me to say no??