This troper and her little brother have been squabbling on and off since they were little kids, and she's still occasionally startled to find that the AnnoyingYoungerSibling she used to have armpit-fart contests with is now
old enough to drink. She still keenly remembers the meanest thing she ever
intentionally did to him.... the two of them were scheduled to get some sort of shot that day, and this troper went first. While in there, she had an evil brainstorm. Cue exiting the room and telling nervous baby brother that she couldn't feel her arm. The doc had to get six nurses to hold said brother down so that he could be given his shot. This troper is extremely thankful her brother remembers none of this.