WWMD

Is it possible to have dementia at 37? There are times that I really think I am crazy. I seem to have a tendency to get really annoyed at things that don't deserve that much thought. For example, I was getting out of my car at work one day and the car next to me had a "WWJD" thing hanging from the rear-view mirror. Instantly my brain went into some sort of annoyance overdrive. How in the hell would I know "what would Jesus do" in any given situation?! The better question is "what would Mehgan do"! I guess that only applies in my life though. My point is, though I don't consider myself religious in any way, my understanding of Jesus and his teachings is to be a good person. Treat your fellow man in a manner that you yourself would like to be treated, golden rule et all. I know there is more to his teachings, but i am summarizing. Back to WWJD, shouldn't I focus on "WWMD"? In my attempt to be a good person, be kind to my fellow man, blah, blah, blah, why do I need to stop and think about what Jesus would do when, clearly, he would have no idea what to do in a modern situation as he died a really long time ago and had no concept of, for example, what to do when an ass-hole cuts you off in traffic. Full ramming speed or let it go? Hopefully I don't burst into flame for voicing this thought.