Amos -

Throughout history, the transporting (and herding) of sheep has been subject to special regulations, including - so I'm told - a clause in some modern teamsters' contracts requiring that "sheep shippers" are entitled to a "co-driver" to bear witness that the sheep arrived unmolested. [This, it is claimed, was to protect the drivers from the inevitable bad jokes(?).]

'Twas claimed that in the early US settlements it was common to prohibit "males past puberty" from being alone with a flock; but I've not seen "authenticated" confirmation. Perhaps clarification is in one of the old newspapers.

John