World's Best Bird Dog

This rich guy's hobby was collecting bird dogs and one day he came upon an ad that said "World's Greatest Bird Dog - $100,000". Being inquisitive, he went to the address listed and asked the dogs owner just what was so special about the dog and why he wanted so much money for it.

The dogs owner said "Let me take you out to the field and I'll show you." He set the dog loose and said "Bird!" The dog took off running around the field and came back, barking three times. The owner said "There are three birds in the field." and they flushed three birds only, unable to find any more.

"That was pretty good" said the rich guy, "But let me pick a field to try him out on." So they went to another field and had similar results, finding six birds this time. The rich guy was so impressed that he bought the dog on the spot.

On the way home, he passed a colliseum with a sign that said Bird Show.  He decided to let the dog loose in there to see just how good the dog was and when he said "Bird!", the dog took off running, went up and down the aisles, back and forth and finally came running up an hour later shaking a stick in his mouth and proceded to hump the guys leg.
Disgusted, the guy took the dog back and told the man he bought it from what happened. "Hell, there ain't nothing wrong with that dog," he says, "he's just telling you that there's more fucking birds than you can shake a stick at!"