sheep also jump which could be a bit of a distraction when you're trying to hold off... Horses as well as being unpredictable also frighten easily which could lead them to going lame -or so the owner will claim. For this reason race courses aren't the best place to put down...!!!. .. .As a glider pilot, I don't know much about laning on motorways, not would I want to, but field landings are pretty frequent. Therefore, a hierarchy of fields have been developed with set-aside/ cut fields at tht top, and animals/ tramlines etc at the bottom; and all the perils and pitfalls of everything in between.. .. .Have a look at the site <a href="http://www.field-landings.co.uk" target="_blank">www.field-landings.co.uk</a> for more info on this. .. .yp