There was this Norwegian farmer, Ole, from Wisconsin, and he is going to Minnesota to buy a cow at a sale. Ole gets to Minnesota and buys the nicest looking cow there and takes it home.
Getting ready to milk it, Ole grabs a hold of the teats, pulls, and the cow farts. Ole thinks to himself, "Uffda, oh what da heck," and he grabs a hold of the teats, pulls once more and the cow farts again.
At this point, in walks his Swedish neighbor, Sven. Eyeing Ole's new cow, Sven asks could he try milking it as it sure looks like a good milk cow. Ole replies with a "yah", and Sven grabs a hold, pulls on the cow's teats and the cow farts.
Sven looks at Ole and says, "Yah buy dis cow in Minnesota?"
Ole says, "Yah, I did, but I never told ya dat. How'd ya know I bought da cow in Minnesota?"
Sven says, "My wife, Cristy, is from Minnesota."