Another thing, Avenger, you said if they watch me from behind, then just take the QF bottle and use it, but wont they hear the suction? I dunno if suction is the right word, but that sound after you take a sip of Gatorade, where the air sucks back into the bottle. When I was practicing with water in the travel bottle I bought from Meijer, it was making that noise. If someone was standing behing me, there's no way they would miss that noise.