Ages ago there was a company that planned to convert Tyson Chicken carcasses into gasoline via depolymerization. Problem was that’s a high pressure process, and they didn’t take that seriously enough at the start. Leaks everywhere. Neighborhood smelled like burnt chicken feathers.

They had to shut it down and redo all of the welding (I don’t recall if they fixed existing welds or pulled the whole thing apart). Afterward they still got complains about the smell, swore they’d fixed the leaks and the neighbors were imagining it. I suspect some esters were coming out the end of the pipe, and/or the dust everywhere around the place was saturated from the pilot project and every time the wind shifted they got another nose full.