A lawyer and a doctor talk at a party.

But guests come to the doctor all the time, interrupt their conversation and complain about their wounds, ask for advice.

Doctor to lawyer: Why doesn’t anyone ask you for advice when you’re not at work?

How do you succeed?

Lawyer: If someone asks me for advice, I give it, but then I send a bill.

The doctor liked the idea.

The next day, he received a bill from a lawyer.