Picture this: It's gone past midnight, on Christmas Eve. December 24th is now officially the 25th. You're hung over, from a week of club gatherings, family get-togethers, and office parties. Kids have been pestering you, all day. And most of the night.So - glass of Alka Seltzer in hand - you face the budget-size Christmas tree in your budget apartment. Suddenly, a plaintive cry: "Ho! Ho! Whoa!!!", issues from the space above your imitation Yule log fireplace.And a portly old gentleman in red crashes to your living room floor.