Oh, my.
What do you do that causes them to faint?
:-)
If they are startled, the “fainting” happens so a loud noise will do it. They don’t actually ‘faint’, just tense/stiffen up and fall over.
Here’s a link:
http://animals.howstuffworks.com/mammals/fainting-goat.htm
Look up fainting goats on youtube. Anything that scares them causes them to faint.