well, if i were to smoke weed out of it and it broke, i wouldnt just send it back, i would clean it first if it were me, then it would be rather hard to say what was smoked out of it, and even then they probably dont inspect them, they probably just toss them into a smelting device to recycle the materials.

oh, and it is a nifty idea as well, id seen it on grasscity a few times, and read about it, but it didnt seem like a device for me, it just looks weird, and im a little vain about that kind of stuff, but i thought it was a good idea.