I dont know how desperate you are to smoke on 4/20 but you could always put a few grams in a condom and swallow it or stick it up the old pooper. Steve-o did it taking weeed into switzerland or something, saw it on the news while back. You;s just have to pick through your turds, but it couldnt be that hard to spot a condom full of weed in the toilet.

haha.