A farmer wakes up one morning and opens his window to find ALL his cows are frozen solid.
The farmer imediately calls the vet. The vet explains that this is a very rare event and gives the farmer a telephone number to call. So the farmer calls the number and explains to the women at the other end what has happened. She says "No problem, I will be at your farm around noon."
At noon the lady duly arrives and the farmer shows her where the cows are. The woman starts to do her magic running around the field like an idiot flapping her arms in the air and making strange noises.
An hour later the farmer is amazed to find all his cows are happily grazing in the field. The farmer thanks the lady and says "By the way, don't I know you off the telly?"
"Yeah", she says... "I'm Thora Herd"