Lawyer - always at work!

Two men were sitting in a corner of a restaurant. To avoid boredom, one of them started a conversation by asking the other, "What do you do?".
The other man replied, "I am a lawyer".
"How much do you charge your clients?"
"I charge 5000 dollars for four questions."
"Isn't that too excessive?"
"Yes, I admit. What is your fourth question?"