'Proceed with caution . . . to Mexico . . .'Or as special agent Lemmy Caution sees it: 'It's hot as hell. Away down the dirt road some guy's playin' one of them wailin' Mexican fandangles which give me that twilight feelin' . . . maybe it'd be a relief to start dyin' . . .'Across the road some guy in a funny hat is handin' out a spiel to a dame about what a great bullfighter he used to be. Maybe she's his wife. If she is, then all I can say is she's...