bum walks into a bar, asks for a toothpick, bartender gives him a toothpick, bum leaves second bum walks into a bar, asks for a toothpick, bartender gives him a toothpick, bum leaves third bum walks into the bar, bartender goes 'you want a toothpick'? bum says 'no, gimme a straw instead' bartender asks 'why the straw?' bum replies 'well, someone barfed outside but all the chunks are gone'