From my best and favorite submitter Rusty

Ole is a farmer in Minnesota.

He is in need of a new milk cow and hears about a
nice one for sale over in Nordakota (that would be ‘North Dakota’ for
you non-Scandahoovians out there).

He drives to Nordakota, finds the farm and looks at
the cow.

Ole 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 current
owner, Ole decides to buy the cow and take it home.

When he gets back to Minnesota, he calls over his
neighbor, Sven, and says, “Hey, Sven, come and look at dis here 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 hadn’t told Sven
about his trip.

Ole replies, “Yah, dats right. But how did you
know?”

Sven says, “My wife is from Nordakota.”