I grew up in a small agricultural town with a typical main street layout. One day, a rendering truck had to hit its brakes hard, and a hogs head fell out on to the street. The smell was terrible--the street cleared in seconds! The fire dept had to come out and hose the street down.
Years later, in So. Cal. dairy country, a rendering truck pulled into my auto repair business looking to get a rear dual tire repaired. The stench was overpowering with customers fleeing and gagging. I told the driver I couldn't help him because my shop was not set up for large truck tire service (split rims etc) which was true. I sent him down the road to a truck stop. It was all I could do to stand near that truck and talk to the driver. Amazingly, he wasn't fazed at all! It took a good hour for the air to clear. Mike.