I can’t vouch for its efficacy (once one cow goes I suspect the others will follow, unless the head man has his fidgeting gestures down), but this Method For Sorting Cows is certainly beautifully written.

Hat tip to Mike, who pointed me at the same site’s pdf facsimile of The Policeman’s Beard is Half Constructed. Also see “The first thousand numbers classified in alphabetical order”, which is exactly what it sounds like.