Moriarty and Sherlock in “Unfinished Business”

Moriarty

[returning to the room] Sorry, boys! I'm soooo changeable. It is a weakness with me, but to be fair to myself, it is my only weakness. You can't be allowed to continue. You just can't. I would try to convince you, but everything I have to say has already crossed your mind.

Sherlock

Then probably my answer has crossed yours. [points gun at Moriarty, then points it down at John's explosive coat on the floor.]