It was Halloween and three vampires went into a saloon and bellied up to the bar. \'What will you have?\' the bartender asked.
\'I\'ll have a glass of blood,\' the first replied.
\'I\'ll have a glass of blood, too, please,\' said the second.
\'I\'ll have a glass of plasma,\' said the third.
\'OK, let me get this straight,\' the bartender said. \'That\'ll be two bloods and a blood light?\'