What if someone's obssession with his (real world) airplane interferes with his family -- most likely financially? He IS "grounded" in reality, just a different part of it. If it gets so bad that his wife divorces him, obviously the plane was more important to him than the wife. Do you know any such cases, BTW?

I've heard of some pilots catching AIDS (Aviation Induced Divorce Syndrome) but offhand, I don't know any of them personally. I do remember an interview of Burt Rutan in the late 1970s. He said his wife gave him an ultimatum of "the airplanes or me." It should be obvious which choice he made and thank goodness he did! Airplanes weren't just his passion, they were his career.