First mention of Christmas

Something that crossed my mind this morning, as I was putting through an order for Christmas selection boxes. People always wonder about Father Christmas in the following ways - 
“How does he know who’s been naughty or nice?”
“How does he fit down the chimney?”
“How does he get to every child around the world in just one night?”
Why doesn’t anyone ever ask this one:
“How does a man who is obviously morbidly obese survive a 24-hour period of intense stress and physical exercise without dying of a massive coronary somewhere over the Atlantic?”

RC 27-10-17