His friend was doing raunchy things in his dirty dreams

The doctor said, “Beginning tonight when you’re dreaming, stop in Tulsa and I’ll drive the rest of the way to Chicago.”

It worked perfectly.

A week later Joe’s friend, Fred, told him, “Every night I dream all night long that I’m being forced to sexually satisfy four beautiful starlets. It’s killing me.”

Joe recommended the shrink.

The next time he saw Fred, Joe asked how it worked.

“Oh, he took the girls away all right," Fred replied.