I recall watching the Flintstones on weekday afternoons when I was a kid. I can't stand the show now, it seems far too annoying. But something did bug me then. I could deal with the time and setting. I could deal with the silly names that added 'rock' or 'stone' into well known names. I could deal with the animals as appliances, like the bird phonograph. What bugged me was the car. It wasn't that it shouldn't have been there, as there was much else that also shouldn't have been there. It was the rear axle. That bugged me. There was nothing to keep it from falling out. It's curious how I could put up with all the other assumptions, but that little bit bugged me. Everything else followed premise, but that just looked like cheating.