He drives to Nordakota, finds the farm and looks at the cow. He reaches under to see if she gives milk. When he grabs the teat and pulls... the cow farts. Ole is very surprised. He looks at the farmer who is selling the cow, then reaches under the cow to try again. He grabs another teat, pulls, and the cow farts again. Milk does come out however, so after some discussion with the cow's owner, Ole decides to buy the cow and takes it home. When he gets back to Minnesota, he calls over to his neighbor Sven, and says, 'Hey, Sven, come look at dis ere new cow I yust bought. Pull her teat, and see vat happens.' Sven reaches under, pulls the teat - and the cow farts. Sven looks at Ole and says, 'You bought dis here cow in Nordakota, didn't yah?' Ole is very surprised since he had not told Sven about his trip. Ole replies, 'Yah, dats right. But how'd yah know?' Sven says, 'My wife's from Nordakota.'