Bull’s Balls

There was a guy who was searching for the most potent aphrodisiac in the world . He went to a Chinese herbal doctor who told him that bull’s balls were the most potent one.
He then went to Spain, the bull-fighting capital of the world. He found a restaurant in Pamplona who specialized in serving bull’s balls. He then was able to gorge himself out day in and day out of this aphrodisiac. One day, he noticed that his serving of bull’s balls were smaller. He then asked the waiter what happened. The waiter replied non-chanantly, “Well senor, sometimes the bull wins.”