[a chambermaid enters Irene Adler's room and screams when she sees Holmes, handcuffed naked to the bed with a pillow covering his groin]
Sherlock Holmes: Madam, I need you to remain calm. And trust me, I'm a professional. Beneath this pillow, lies the key to my release.
[the Maid screams again and runs out; cut to later in a carriage]
Sherlock Holmes: Of course, she mis-interpreted my intention entirely.
Constable Clark: Naturally, sir.