COWS FROM WISCONSIN

>This dairy farmer from Minnesota is trying to replace the cow he lost.
>He visits another farmer and asks where he could purchase cows that would
>produce alot of milk.  He tells him to go to this farm in Wisconsin because
>they
>are known for their dairy products.
>
>So he travels to Wisconsin and sure enough finds this great cow.  He brings
>her home and proceeds to milk her.  He notices everytime he pulls on her
teet
>she passes gas.  The next day its the same.  Finally he has had enough and
>brings her into the vet and explains that everytime he pulls on the cows
teet
>the cow farts.  The vet asks, "Did you buy this cow in Wisconsin?"  "Yes"
>replies the farmer "how did you know?"
>
>"My wife is from Wisconsin" replies the vet.