What’s more dangerous than a night of drinking, smoking and devouring greasy diner food? Your breath afterward! Close Call aims to change all of that with a miracle liquid designed to eliminate bad breath and reduce hangover symptoms. Sound too good to be true? Well, it is, kind of. The test: 10 whiskeys, three cigarettes and a Reuben dripping with enough sauerkraut to make a Fräulein blush, all followed by Close Call. Although the rancid breath was permanently gone, the hangover symptoms did linger in the morning. In addition, despite the Web site’s (www.close-call.info) claim of a “mild flavor,” the elixir left my teeth tasting like soft chalk. Anyway, even if it doesn’t cure hangovers, Close Call is small, portable and useful for anyone who wishes to hook up at the end of the night.