Today’s poem, written in 1871, actually gave the name to the since-codified psychological phenomenon known as the “centipede effect” or “centipede syndrome.” Psychologist George Humphrey (for whom the condition is alternatively named “Humphrey’s Law”) said of the poem, "This is a most psychological rhyme. It contains a profound truth which is illustrated daily in the lives of all of us."
Katherine Craster's "The Centipede's Dilemma"