Thou shalt not tailgate the two-wheeled conveyance known as a motocycle, for blood is corrosive to modern automobile paint and matted hair will surely constrict the airflow through the radiator. This applies as well to the manually-powered version, the bicycle.
If thou chooseth to ride a motorcycle, thou shalt not remove the muffler, neither shalt thou maketh a spectacle of revving thy engine whilst awaiting the green light, neither shalt thou use the roads of Ceasar as a race track lest ye be cast into jail to wail and gnash thy teeth.
Thou shalt not insist that thine car has enough gas to ascend a great mountain, despite the fact that the gas beacon is glowing brightly for all to see, only to have thy tank experience a drought of biblical proportions and force thine passengers to walk 12 miles to the nearest petrol station because thine cell phone receives no reception upon the mount.
Thou shalt not put on make-up, shave, or read while driving.
If thou insisteth on having fake Hawaiian leis, Mardi Gras beads and graduation tassles, they shall not occupy more than 10% of you shield of wind.