Re: Hookah goes on the ground!
I do think that practically needs to be in effect for whether or not the hookah rests on the floor. It's fine for 18" and up to sit on the floor as you can reach it and it's big enough you'll see it and not knock it over. Smaller than 18" probably should be on a table or if you're sitting on the ground with it, that's fine. Otherwise I see many burnt carpets in the future...