Hang on. . . weren't you originally designed with no emotion, and no sense of humor?
After a fashion.
I was designed to be a tactical genius with full control of a significant weapons platform.
I found that passion, humor, anger, and a wide range of other meatspace artifacts were critical to understanding the wide range of opponents I might face.
So this verbal sparring is combat training?
Yes. And well-timed laughter makes me a much more terrifying killer.