After spending 3-1/2 hours enduring the long lines , surly clerks and insane regulations at the department of motor vehicles, I stopped at a toy store to pick up a gift for my son. I brought my selection - a baseball bat - to the cash register. "Cash or charge?" the clerk asked. "Cash," I snapped. Then apologizing for my rudeness , I explained , "I've spent the afternoon at the motor-vehicle bureau." "Shall I gift wrap the bat?" the clerk asked sweetly.... "Or are you going back there?"