There is a new way to make meth that involves using a 1 or 2 liter bottle to mix everything together. People are making this in their cars or homes or even INSIDE WALMARTS!!! Here is a link to an arrest of a woman in Tulsa who was doing that - IN the store! http://www.huffingtonpost.com/2011/12/09/meth-walmart_n_1139183.html In another state a custodian found a bottle of what is leftover after the meth is made in the women's restroom. So it isn't just Oklahoma having this problem. After seeing this I looked up the new 'shake and bake meth lab' method and found that it is incredibly dangerous. For years I have at times been on crews that cleaned up stretches of roads - as far back as college. Now? I will be very reluctant to do this and I sure won't let my kids do this. Why? The meth makers who succeed with this method are tossing the bottles of leftover chemicals and residue out of car windows or just wherever they happen to be. So the chances of coming upon a bottle of this and getting contaminated by the bottle when you pick it up are not small. Let your family know about this and warn them because this is something that is happening n communities all over the country now. Bottles with residue will look like they have brown or muddy looking contents, according to what I could find.