Most diners don't do that. I don't know of any place that makes their own bread to serve as toast with their eggs. We've built up a reputation on the bread alone. So good is the bread that people coming from out of town will often buy several loaves to bring home with them. Panko says that it's not unusual to sell 10 to 20 loaves of bread to someone from out of town.
People come in just for the bread. . .
We've had orders for 20 loaves at a time. Hamburger buns are about the only things not baked at the diner. He helps me on weekends sometimes. He just wants to learn. I never thought I would be doing it.