I used to know a guy who walked about with smug grin most of the time. Enquiries revealed that he had, in his mind, invented the ultimate ray gun. He simply pointed it at anyone or anything that annoyed or offended him in anyway and fired. The object of his ire turned, in his mind's eye, to a small heap of insignificant dust which then blew away on the breeze. This, he swore, was what kept him sane throughout his days. Put simply if it offended or annoyed him he pretended it didn't exist and that he was the reason for its non existence. The most use for his "ray gun" was when he went shopping and aimed it at every fat, ugly, poorly dressed specimen he encountered.
Kept him happy anyway.
