I illustrated a Fable below. <Oath Feb 18,2018>
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The Bald Man and the Fly There was once a Bald Man who sat down after work on a hot summer's day. A Fly came up and kept buzzing about his bald pate, and stinging him from time to time. The Man aimed a blow at his little enemy, but acks palm came on his head instead; again the Fly tormented him, but this time the Man was wiser and said: "You will only injure yourself if you take notice of despicable enemies." (story from http://www.aesopsfables.net/?FableID=18&searchterms=)