Genuine Smile Happiness

I can smile and laugh or something?
I can literally smile or laugh at any and everything and actually be happy or amused by what happened. I do when I'm in trouble, no matter that I've gotten into trouble with it. I even smiled when I heard about the death of a close friend, with true happiness. Does anyone know what this could mean?
Most often, inappropriate laughter, is a defense against feeling. In fact, there is nothing wrong with being able to laugh all, the real question is, can also identify with it. Doctors in hospitals often laugh and joke about people who come into emergency rooms. They almost exclusively do this with other doctors, so they should know a few to see it. At the same time, time, nurses are the same with other nurses. It is often called "black humor." police officer do the same. Social workers, judges and lawyers are also among the crowd. Jokes is just a way to get through things, which puts them at a safe distance, and deal with them. I have met many health professionals and professionals mental health and seen often uses humor as a way to separate himself from the experience of serious emotion. With that said, I have seen these same people with the depth and that will crawl emotional emptiness and gave birth to their souls. The laughter and the joke is not a problem unless you have a unique ability. If laughter is the best we can do which are actually a very low person. His wit and humor born of ignorance of the depth and feelings that people share.
That Smile, That Infectious Smile!