Two blokes meet up for the other one's birthday. Person A gives his gift to Person B. "Happy Birthday, friend', he says. Person B thanks him for the kind gift. They both have a drink of scotch and smile. "Birthdays are great, aren't they?" Person A says to Person B. "They're just like Christmas Day, if you ask me."
Person B looks at Person A and says, "Um...it IS Christmas Day, you know that right?" Person A looks at Person B in horror.