oily

After a major pipeline rupture five years ago, he started photographing and filming pools of oily water and heaps of blackened soil in locations in Unity State, including sites near Roriak, where the herders live.

He says it could be caused by fallen leaves "or sometimes you get very strange combinations of mist and rain that can end up creating a bit of an oily surface on top of the rail head and that’s extremely slippery".

Earlier this week he posted an Instagram video in which he declares that “Big oil big wigs are up to their oily shenanigans here in California.”

Chloropicrin - which the US says Russia has used to "dislodge Ukrainian forces from fortified positions" - is an oily substance which was widely used during World War One.

Aykroyd is the perfect oily salesman selling an impossibly absurd product.