Joan dresses as quickly as she can while also trying to listen to as much of what is going on as possible.

Sherlock's own expression softens a little at that. He believes Mr. Wilson. What's more, he can sympathize with him.

"As the son of a greedy rich bastard," he says, "I commend your objective. I'm afraid redemption may be elusive, however. The world is unfortunately populated with far too many of the sort."