Fainting Goat or Myotonic goats

A myotonic goat is a domestic goat whose muscles freeze for roughly 3 seconds when the goat feels panic http://buff.ly/2tWvPAL

Fainting goats are slightly smaller than your average goat breeds. Generally they are 43-64cm tall and can weigh from 27 to 79kg. The males, or bucks, as they are known as can be as heavy as 91kg. 

Each October, fainting goats are honoured at the “Goats Music and More Festival” which is in Marshall County, Tennessee.

Funny Facts About Fainting Goats | The Fact Site

https://www.thefactsite.com/2009/05/fainting-goats.html