Welp, my room-mate seems to think that my Mountain Dew is community pop. I/we have gone through at least a case a week since I got here and I don't drink anywhere near that much. The last case I bought he drank 15 and I drank 9. I've talked to him, he denied it, I asked him to stop, he denied, I flat out accused him and he denied it. I left a sealed 12 pack here last weekend and when I got back it was open and five were gone. I'm getting pretty sick of this and since he won't listen I'd like to shake him back into reality. Don't worry, not doing anything stupid, just something that'll get him to stop. Is there any way to put a small amount of fluid into a pop can without it being noticable? I was thinking syringe and poking it near a seam but any way I'd do it it would still let the carbonation out. He doesn't do it in front of me so it'd be pretty hard to slip it into one that already open....anybody got any suggestions.... Oh yeah, and our door is always locked whenever either of us leaves, so it's not somebody coming across the hall and ripping it off or anything...that, and the dew cans in his garbage pretty much give it away.