1. Amoo Hadji (Dirtiest Man On Earth)
This is a movie, it is really shocking though bit Amoo Hadji is real and has not bathed for 60 years.
He smokes animal dung and sometimes multiple cigarettes. You might notice the hairs look kind of weird because he burns them to keep them short. He has lived most of his life like this, and perhaps will continue to live this way until his soul leaves his body.