The annual food drive/bar crawl known as SantaCon is upon us. Pedestrians in cities around the world should be on the lookout for roving Kris Kringles, who will be marching along, spreading holiday cheer, and hopefully remembering to tip.

Santa sighting reports are flooding social media, with documentary evidence from subways, Lower Manhattan and Trafalgar Square.

And yes, there is a distinct Guy Fawkes theme this year. Santa looks like he's fixing to occupy something...