Well this happened with me once. I was in my math class and the AC was on. It was ridiculously cold and I was freezing. As I didn't have a sweater or a jacket on me I simply hugged my bag close to me - it was one like a sack. A guy - actually a friend sitting next to me glanced at me and he had this amused grin on his face.
So when I asked him what happened, he plainly said ,"I wish I were your bag."
But I didn't let him get away with it. I added, " Yeah. I wish so too. I wish it were a punching bag."
Hahahaha... we were both laughing nuts after that. :-P