I'll explain it to you then. When selling fowl, my customers have a very annoying habit of showing up 30 or more minutes late. When they do, I want to say "Do you show up 30 minutes late to your doctor's appointment and expect to be seen?".
Many times I want to say this to people that show up late to buy fowl:
"When you show up for a doctor's appointment 30 minutes late, do you expect them to see you?"