The shin bone is a device for finding furniture. Ole and Sven are neighbors in Wisconsin. Ole is in need of a new milk cow. He hears about a nice one for sale over the border in Minnesota. He drives over to Minnesota, looks at the cow, and reaches under to see if she gives milk. When he grabs the teat and pulls, the cow farts. Ole is very surprised, looks at the farmer who is selling the cow, and 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, Ole decides to buy the cow and take it home. He calls over his neighbor, Sven, and says, "Come here and look at dis new cow I just bought. Pull her teat, and see what happens." Sven reaches under and pulls - the cow farts. Sven looks at Ole and says, "You bought this cow in Minnesota, yah?" Ole is very surprised and says, "Yah, dats right, How did ya know?" Sven says, "My wife is from Minnesota."