I used to work at a rail yard that was next to a rendering plant. That's where they take all the unused animal parts and render them into dog food and the like. Fortunately, it was downwind in the prevailing weather patterns. One day one of the ( as usual overfilled ) dump trucks transporting the offal, got cut off badly by a dummy, right outside our gate. Our gate was upwind.

Yup, it all slopped forwards and a significant portion made it onto the road. That was a lovely Summer let me tell you. For the first few days I had to walk along the grass from the gate to get past the contaminated section of road before riding off. The City did some cleanup, but a lot got onto the verges and ditches, so it was pretty rank till the hawks and magpies etc did their job.

My current commute goes past a slaughtering plant, and there is often some foul spills near the gate. i can usually avoid most of it though. Got to concur, Tundra's definitely winning this one so far...