In the middle of the night, in the middle of nowhere, two cars both veer over the white line in the center of the road. They collide and a fair amount of damage is done, although neither occupant is hurt. It is impossible to assess blame for the accident.
Both the drivers get out of their car. One is a doctor and the other is a lawyer. The lawyer calls the police on his car phone and goes over to talk to the doctor.
It's cold and damp, and both men are quite shaken up at the accident. The lawyer offers the doctor a drink of brandy from his hip flask.
"Why, thank you," the doctor accepts. He takes a few drinks and hands it back to the lawyer, who puts it away. "Aren't you also going to have a drink?" the doctor asks.
"Yes. After the police get here." replies the lawyer.