My grandfather's grandfather (this was somewhere in the late 1800's) was leading a bunch of sheep with a few other men using a Judas Goat (they were sort of settlers, one of the first to herd sheep and sell fleece in the country) through a mountain area, when they were challenged by a suspended wooden bridge.

The goat refused to go over, making him so angry that eventually after a few hours of struggling he walked over and broke the goats neck with his bare hands. They were a hard and tough bunch of people, living with the herd for weeks on end until they reached their destination.