clear a 4 foot bong full of smoke? My room mate and I bought one a couple of months ago and have had a little contest going on for awhile. First off, I've only been able to clear about half of it and then I immediately cough. I don't consider myself an experienced smoker at all. 2nd, I have no idea if it's even physically possible to hold the volume of smoke in this 4 footer in your lungs. Anyways, the contest that we have going on is that anybody that thinks they can clear the bong can pay $10, we pack the bowl, and then they go for it. If they can successfully clear it, they can have the bong. It's just an $80 pyrex bong so it's not like it's some really expensive glass piece. So far we've had about 30 people have a go at it who thought they could do it and nobody has been able to do it yet. More money in our pockets So my question is, is it even possible to take in that much smoke into your lungs?