All work and no play makes Johnny a very dull boy. In this case, the boy called Johnny is you (it is called acting). Humor is paramount, as Grenville Keliser says, for living a healthy life. Taking things too seriously can really do a number on both your mental and physical health. That is why it is important, from time to time, to take a step back and look really hard for humor in a situation. Nevermind what the corporate execs or the clients think you should be doing!