Heh. I actually watched an episode of Mythbusters tonight (last night? whatever, I haven't slept yet!) where they focused on "viral videos" - and this was one of them!!
I thought of you immediately, Marion!
It was amazing the stuff they had to INTENTIONALLY do to get a bunch of them to all fall over at once... meanwhile, the camera crew and farmers were just WALKING by and they were falling over. It was classic... they finally crawled into the pen in friggin GOAT costumes and then when in the middle of the herd (flock? eh) they got up and started yelling.
I couldn't breathe I was laughing so hard, especially while thinking about it in combination with on here!