Wait wait wait...Your friend drinks bong water? Ok, now I know people do some strange things; whatever floats your boat I say, as long as it doesn't hurt others. But drinking bong water? I just...you...wha...how...huh? I feel completly justified in calling your friend an idiot. I'm sure he is a nice guy with many redeming attributes, but anyone who chooses to drink bong water is certainly not the brightest bulb in the bunch.