“These guys are nuts. I really hope no one throws up. Care for some hamburger with your water?” I thought to myself as I watched eight men sitting in a row, stuffing Jim-Denny’s half-pound hamburgers down their throats, one of who proceeded to dip his half-eaten burger and patty into a cup of water between bites.   On the stage behind them stood the emcee, Sacramento's local music guru Jerry Perry, with a mic in hand, watching with everyone else to see who would clean his plate first.   Pedro Alarcon won the Jim-Denny’s superburger-eating contest at 3 minutes and 41 seconds. Perry handed him a T-shirt for his accomplishment and suggested the rest of the men take their leftovers home.