Whilst on the subject of Cows ... back in August there appeared a rather large hole in the County of Durham, alas my broomstick had its feathers clipped, and the extent of the damage to said hole is still up for exploration:  http://www.bbc.co.uk/news/uk-england-tyne-28927743  "A giant sinkhole that has opened up on farmland in County Durham has continued to cause increasing concern as it threatens to get bigger, a landowner said.