"Show off," she tells him fondly. "But you're missing the obvious- getting the very clever, techinical stuff and not seeing what's right in front of you. Really, Mr Holmes, think."

She's taunting, but that doesn't mean she's being unpleasant. Really, she suspects they'd both get bored if they were to have a conversation without the push and pull, the eternal tug of war between wit, will power and the desire to knock each other off stride.

"Do you think people keep me waiting often?"

Modesty is not a virtue. It's just lying. And that's immoral, don't you know?