It's analogous to the first rule of gun safety: "The gun is always loaded" except it's "Bikers are always invisible."
I was once asked by a cousin if I rode "defensively," as if the drivers couldn't see me. I said "No!" "I ride as if the other drivers are trying to hit me! Defensively doesn't cut it!"
Mark
LOL! There you go.
I always say I ride "OFFENSIVELY!" Few cage drivers seem to understand :)