Dd was at friend's house after school. I told friends mum if puck her up at 4.15, there's an event I want to take her and dd2 to at 4.45. She said she'd drop her home. I made it clear she needed to be home by 4.15 at the latest. They're still not back. If we don't leave now we'll miss the event. Aibu to be pissed off??