A scottish cow

There was a remote village in Ireland with a very small population.
One day the cow supplying milk for the village died. The people were in a panic because cows are expensive and they could not afford to replace it. Until they heard that they could get one very cheap sent across from Scotland.
They got their new cow and it supplied plenty of milk and everyone was happy. Then they decided to hire a bull to sire more cows so they would never run short of milk again.
The cow however would not cooperate and the bull just could not do his job, so after a few days, they decided to go and see the vet. 'We don't know what to do' they told him. 'If he approaches from behind, she runs forward and if he approaches from the front she backs away. If he goes from the side, she runs off to the other side. What can we do?'
The vet has a think and then he says, 'you didn't get her from Scotland by any chance did you?'
The villagers were amazed since nobody had mentioned to the vet that she was from Scotland. 'Ah you are a wise vet indeed, but how did you know we got her from Scotland?'
The vet got a faraway look in his eye and said wistfully, 'My wife is from Scotland'