That's Not Santa!!

My 3 year old nephew sat on Santa's lap at our family Christmas party last weekend. He jumped down off of Santa's lap, took his gift to his mother and then came back over to me and pointed at Santa and told me "That's not Santa"! I told him it was and he said "No it's not, he's not fat". I looked at him and told him it's because he ate Santa's cookies. He just looked at me then turned around and walked off!!! He couldn't argue with me because his mother bought him a shirt that says "I ate Santa's cookies". A three year old should not mess with me!!