A shnorer (a professional Jewish fund-raiser) rings the bell of a banker's home at 6 a.m., claiming it is an emergency. The banker hurries to the door to find the shnorer asking for a donation.
"How dare you wake me up at this time!" yelled the banker.
The shnorer responds: "Mr. Banker, listen to me. I don't tell you when to begin working in the morning, so please don't tell me when I am to begin working in the morning."