So stand around with sheep all around you and yell out "BLEARRGGGHH!!!" and start waving a stick around, and they'll all run from you. Take a stick and poke at only one of them, and it will be the only one running away while the rest stay put. (I have no idea if this would ACTUALLY work, since i've never been around real sheep... i have heard they're pretty damn stupid though, so maybe neither one would work? )
Why not put both things into the game? Add a shepherd's hook "tool" to the game too, why not?

Like a farmer's hat, but for milk.
edit: forgot to delete the remnants of an aborted sentence before submitting....
"Bein' a minotaur is a lot like bein' a regular human except moo" - J. Rowland