Happy Global Belly Laugh Day! 

What do you call an arrogant criminal going downstairs?

A condescending con descending!

Humor is the work place keeps things light and makes your team more productive.  Everything doesn't need to be serious in order to be professional.  Keep a light-hearted business friendly sense of humor to engage your sponsors, stakeholders and team members more fully.  Elicitation of requirements and design design benefit from having a sense of humor.