Down With ADD

So there is this guy in one of my classes who rocks back and forth constantly because he apparently has "severe" ADD and this rocking motion makes him feel more comfortable. It's highly distracting so I started putting my hand down my pants to nestle my testicles in order to relieve myself from his incessant rocking. My teacher pulled me aside after class and asked me not to do so in the future but now I'm really tense if I sit near him(as I imagine are other students) and no amount of glaring at him seems to make an impression.