There is unquestionably a certain social utility to being polite. But no, I am not a nice man. It's important that you understand that. It's going to save you a great deal of time and effort. There is not a warmer, kinder me waiting to be coaxed out into the light. I am acerbic. I can be cruel. It's who I am. Right to the bottom. I'm neither proud of this, nor ashamed of it. It simply is. And in my work, my nature has been an advantage far more often than it has been a hindrance. I'm not gonna change.
Sherlock Holmes, Elementary