- "They [Marty and Doc] noted that several boys walked behind George McFly, barely suppressing giggles as he moved out of the classroom into the hall. When he neared them, another boy walked up behind George and very deliberately kicked his behind. / George turned, looked at the fellow with downcast eyes. A sign reading KICK ME was hooked onto the back of his collar. He was, of course, completely aware of it."
- —From Back to the Future by George Gipe (quote, page 142)
- "Okay...okay, you guys. 'Ha ha ha,' very funny. Hey, you guys are being REAL mature."
- —George McFly sarcastically to his assailants
The "Kick Me" sign was a popular practical joke. A piece of paper bearing the words KICK ME was affixed to a victim's back without his or her knowledge, and usually resulted in the victim being playfully kicked — usually in the buttocks.
Mark Dixon attached one such sign to George McFly's back on the morning of November 7, 1955, in between classes at Hill Valley High School. Marty and Doc witnessed Dixon and another student repeatedly kick George, who tried desperately to take the harassment in stride. It was all for naught, as the repeated kicks caused George to drop his books.