I'm not trying to downplay his contributions and tenacity. His work is truly impressive. I am an American male speculating. I think both his and my solutions are better than plugging oneself up with sawdust and leaves.

I wouldn't expect this man to know about these cups or women in rural India to have convenient access to not only the cups but also to plastic bags, clean water, and soap. For those who do, however, my solution is lasting, secretive, and feasible.