I'm curious about the reason the parents sent the food. Did you ask them why they were sending it? I've had parents send in treats on special days but not often. They all know I serve mostly organically grown, home-cooked food so why would they send any food? Do you have a communication problem with this family? Time to have a chat with them and get things straightened out. I never sit and wonder I always talk to people right away and solve the problem. There are too many problems if you let them pile up. Deal with them right away every time.