There are some kids like "Bobby" in our troop, I used to be one of them myself
Either he'll grow out of it, or the other scouts will get used to it. My advice? Give him time.
As for the tent problem, I agree with Acco in that the scouts should work it out by themselves. Who knows, maybe someone will become friends with "Bobby". All I know is, don't have the kids take turns tolerating Bobby...that only makes the kids more apprehensive towards him, and makes Bobby feel less like a person, and more like an annoying thing to be tolerated, instead of an individual.
Remember, ADHD kids have feelings too. Beleive me, I should know