A naked man

Late at night, a man strange to me came to the shop. Why do you say he is strange? It's his clothes.

He wore a thick cotton-padded jacket, which is normal in itself, but he didn't wear pants or even underwear, which means he is naked.

Some people may guess that he is mentally ill, but whether he is shopping or talking, he is clear-headed and smart.

I really want to ask him why. Was it an oversight? Or is there another reason? But I held back because many people saw him naked more than once.

Why should a man, or a normal man, be naked in the cold winter? Is it intentional? Want to be famous? Or is there something else? Maybe we'll never know!