Dentist appointment is at 3:15, school dismissal is at 3:10, and the parking lot is five miles away
The receptionist said "3:15 sharp" like I have a teleporter.
School lets out at 3:10. The parking lot exit takes eleven minutes if nobody's texting. The dentist's office is four lights and a left turn away.
Punchline
I arrive at 3:47 with a half-eaten granola bar and an excuse about "traffic." The hygienist just points at the late-cancellation fee poster. Again.