I don’t belong to a gymnasium and I don’t open the hood of my car, but I know lots of folks spend their days in those mysterious places. What I didn’t know is that there were enough gearheads and gym rats to warrant these stern but crazy signs I spotted in the Arclight garage in Hollywood. Are people really arranging impromptu tune-ups and mixing cocktails on their way to Amoeba music? I’ll have to pay closer attention next time I park for the Cinerama Dome. Sounds like a party!