The reason that Bob's head fell off is that the temperature was rising outside. Water was dripping everywhere. Those of us with hearing listened to the drips as the previously crunchy snow began to turn to slush. Before Bob's head fell off he lost his nose and one of his potato eyes. He looked a right mess.
Little Phoebe was coming here in the middle of the afternoon and I was a little worried in case she suffered some kind of trauma upon seeing a now headless Bob. That's why I did the swift surgery - no anaesthetics or anything. I suspect you will agree with me when I say that a child's mind could be permanently scarred by the sight of a decapitated best friend.
Being a transplant surgeon is not as hard as it might appear. I have had zero training in the field and discovered that all I needed was a modicum of common sense, a screwdriver, gloves and a garden spade.
As I was operating on Bob, I wondered why all snowmen are white. In this age of multi-culturalism and political correctness, it is surely time that we saw black and brown snow people in our midst. If there is to be a next time, I must investigate food colourings that I could spray onto the surface of the snow or would non-white people find that offensive? It is so hard to do the right thing.
Finally, I have confession to make. My idea for a story based on Bob The Snowman and Little Phoebe was 99% plagiarised and based entirely on the comic book "The Snowman" by Raymond Briggs - first published in 1978 and later turned into a very popular Christmas film with a memorable theme song sung by Welsh choirboy, Aled Jones. Well done to Frances and I think Thelma for spotting this crudely attempted deception!