This Saturday I went to london with a resident from my house. We didn't go to shop or go to a museum or a West End musical. We went to sing Christmas carols. Her family is part of a non-profit that takes disabled children on pilgrimages to Lourdes in France, and they were raising funds by singing carols in a shopping center in London. It was all pretty fun (right up until I lost my voice) but the best part was when we were singing "Santa Claus is Coming to Town." We were about halfway through the song, and I looked up, and coming down the center of the shopping center was a flash mob of HUNDREDS of people dressed like Santa. They danced right up to us, gathered around and started singing along. It could not have been timed better. It was simply magical.
They passed out vouchers for free hugs from Santa with a website on it, so I looked it up and apparently it's an annual "Santacon" by bringstuff.com, which just organizes flashmobs in London. Bring Santacon.