A redneck cowboy rides into a town on a hot blistering day riding his horse with his dog following. He ties his horse and the dog under the shade of a tree. The Redneck cowboy goes into the bar for a cold beer.
About 20 minutes later a policeman comes in and asks who owns the dog tied under the tree. The Redneck cowboy tells him that its his. The policeman says; "Your dog is in heat".
The redneck cowboy answers; "No way the dogs in heat; he's cool, cause he's tied under the shade of the tree".
The policeman says; "No, you don't understand, your dog needs to be bred".
The redneck cowboy shakes his head and says; "No way the dog needs bread, he's not hungry, I gave him beef jerky this morning".
The policeman finally gets mad and says; "Look, your dog wants to have sex".
The redneck cowboy looks at him and says "Go ahead, I always wanted a police-dog".