Three vampires walk into a bar. Bartender asks the first one what he'd like - vampire says he'll have a pint of O+. Bartender asks second vampire what he'd like - vampire also says he'll have a pint of 0+. Bartender asks third vampire what he'd like - he says he'll have a pint of plasma. So the bartender says - let me see if I've got this right - that's two bloods and one blood lite.<br><br>