This is gonna sound so lame, but... -
Arwen always got her haired pulled, and
someone pulled a prank on Leggy and threw a water balloon at him. Bullseye. Leggy looks like a drowned rat! lol So lame.
Bilbo got in trouble for bringing pipe weed to school and smoking it in the boys bathroom.
Gimli's beard gets declared a national hazard zone, and a national safety device. He hides in it during tornados. When children walk by him, they disappear. Strangely enough, his beard grows twice the rate it normally does when kids vanish.
Sauron secretly joined the art club.
Gandalf got seriously injured tripping over his long cloak. It was Saruman's spare one. He forgot his.
Haldir got suspended a lot for fighting and bringing daggers to school. Sauron irritated him.
Merry and Pippin made up a club, and they set their club house on fire by launching a rocket in it by accident.