“During stress therapy workshops, Amsterdam police officers are assigned to paint a portrait of, then cuddle with, a cow,” says the caption to this photo. A November 1, 2006 article in Mother Jones tells some of the background. The Sociological Images web site features the photo itself:
(Thanks to investigator G. Jules Reynolds for bringing this to our attention.)
BONUS (not quite related): Unexpected cow-birthing at a soccer match in Leiden, the cows being present to supply the fuel for a “predict where on the field a cow will deposit a pat” contest