Not all goats faint. The breed that has found fame for falling over is aptly called the Tennessee fainting goat. They're also known as myotonic, stiff-legged, nervous or wooden-leg goats. When they fall, however, the goats aren't passing out from fright. The Tennessee fainting goat breed has a hereditary condition called myotonia congenita, a disorder that affects the skeletal muscles, which are used for movement. When the muscles are voluntarily contracted, such as in the act of running away fr