I think one of the hesitant ones that finally got up the nerve (45 second mark) must have said:
"Damn it, I knew I was gonna bust my chin!"
The worst is when they (in our case a goat), clear the top strand of barbed with their front feet, then don't quite clear it with a back foot, then that back side of the back foot hooks up under the top wire of a woven wire fence. Without human intervention they are done - at least goats or whitetails are.