Thirty years ago I remember a friend telling me about seeing a news report about a farmer who claims he regrew his hair because his cow would lick the top of his head while he was milking her.
So the news report went on to show the farmer charging his bald neighbors to have the cow lick their heads, too.
And then the other day I run across this video on YouTube: http://www.youtube.com/watch?v=RPMNv7kwZzk&feature=relmfu
Could it be the same incident?
Or could it be another incident, and just a coincidence?
Or might there really be something in cow saliva that grows hair?