Agree! You have earned the right to laugh at it. In my experience other people with bipolar react the worst to my bipolar humor. One person said, "It's a DISEASE, not something to laugh at." Well, laughing and finding humor in my situation is what gets me through so yeah...they can bite me. lol
Other people, without knowledge or experience with bipolar, usually don't "get it" so blank stares are the norm...that's ok, I'm glad they don't get it. I wouldn't wish this on anyone.
I say be yourself...joke away if it helps.