Christmas

My ex and her husband had tried - and failed - to break it easy to my 6-year-old son Charlie that Santa isn't real. On Christmas Eve, I read Charlie The Night Before Christmas... before receiving an unexpected visitor on my roof. When a man was startled by my calling out he fell of the roof, and then the Santa impersonator disappeared, leaving only an 8-reindeer sleigh and a suit with instructions to put it on if he's involved in an accident. I did, and I was transported around the town dropping gifts through chimneys until I was taken to the North Pole and informed by a group who claimed they were elves that I was now Santa. Charlie was proud of my new job, though I was scepticle about what actually happened. Then my hair turned white, my beard refused to stay shaved, I gained weight inexplicably, I even had a sudden love of junk food... Now I accepted it, there's just one problem: how to keep it  a secret from my disbelieving family?