this is my first aibu, so please forgive me if this has been done before and I missed it.
we just had a kid (looked about 8 or 9) knock on the door, when I answered he sang We Wish you a merry Christmas. and then he just looked at me. and wouldn't go away. I assume he was expecting something (money? sweets?) I asked if he was with anyone, and he replied his mum - I couldn't see anyone and it was dark.
he wasn't one of the neighbours (we live in a culdesac) sometimes we get kids we don't know at Halloween, but never had this at Christmas before!
I didn't have anything to give, well I didn't really want to give him money, so I just said firmly and a Merry Christmas to you too! but I did think it was weird, has this happened to anyone else? DH said if we didn't give them anything they might go and scratch the car 
ps. he had a Santa hat on