I have a semi-sarcastic sense of humor. Sometimes works and sometimes it gets me called into the office.
I truly do believe a sense of humor will get you thru a lot of stressful things... It does put people at ease. Most of the people that I work with understand my sense of humor there are a couple that will turn me in immediately...
The other day someone asked me how I was doing, and I said pretty good considering all the backstabbing going on... She was offended, and I said if someone doesn't like being called a backstabber then don't do it...