David and his veggie oil purification stuff.

David does really like a billion things and I feel like he's a human version of the game Katamari Damacy based on collecting awesome hobbies and skills.

One of these myriad occupations is his Veggie Oil collection and processing. He and a friend collect oil from all over the city and purify it and run it in their vehicles. This is a random portrait of him with some of the gear used in this process.