BBC News snip:
The ruling says horses are not vehicles
'Too drunk to drive a car? No matter - just saddle a horse and hit the road.'
A court decision effectively permitting those over the legal drink-drive limit to ride a horse has been puzzling people in the US state of Pennsylvania.
Local press columnists are musing over the ruling, which concerns an accident between two horsemen and a driver - all of whom had been drinking.
The court said horses cannot be classed as vehicles, so the two horsemen could not be found guilty of drunk driving.
The decision by the state supreme court provoked a flurry of comments in local newspapers. "The high court is vulnerable to ridicule if a drunk on a horse is involved in a serious accident," wrote Eric Heyl in the Pittsburgh Tribune Review. "At that point, some might even label these legal scholars lunatics."
More:
http://news.bbc.co.uk/1/hi/world/americas/3688186.stm