a stale joke

A group of Americans were traveling by tour bus through Holland. As they stopped at a cheese farm, a young guide led them through the process of cheese making, explaining that goats' milk was used.   She showed the group a lovely hillside where many goats were grazing. These, she explained, were the older goats put out to pasture when they no longer produced. She then asked, What do you do with your older goats in America?
  A spry old gentleman answered, They send us on bus tours!