For me, advent calendars became chocolate when I was about 18. Before then I always had the rather dull, picture only variety. Then out of nowhere, my amazing ability to carb count was rewarded with a chocolate advent calendar which has mysteriously continued to appear year after year.
So far the Christmas tree and the snowman have been equally easy to deal with, but thanks to your warning Megs I’ll keep my eye out for rogue trains, just waiting to run me off the rails.