>The reflectors are a great idea, and obviously intended to allow the porkers to check oncoming traffic before crossing the road ;-)<

Seems this will no longer be necessary as scientists in Taiwan have developed glow-in-the-dark pigs. Their teeth and trotters glow a dull green without any light at all but, when a light <i>is</i> shone on them, they glow a very bright green indeed. Cant seem to shake of the image of luminous green pigs racing around Avebury and shedding 'a whole new light' on the theory of circles as corrals ;-)

I kid you not, this news really was on BBC's 1 o'clock News and was reported by one... wait for it... Christopher Hog :-)