I suppose something of the same sort would work on humans too. I imagine it could be quite popular with some people.

But I'd think that putting a hairnet on a fully grown sheep would require all those tough qualities associated with shearers, and would be likely to guve rise to teh same kind of songs.

I can tell you it's enough to make a bloody shearer weep,
I've put 500 bloody hairnets on five hundred bloody sheep,
I started out this morning, and I finished in the dark, I say give me back me shears again, and blow this for a lark.