One American staying in London Zoo

One American staying in London took his children to the Zoo.
The children liked the Zoo very much. So approaching one of the keepers, the Yankee said: "Say, man, take me along to l your boss. I want to talk business with him."

The keeper asked suspiciously: "What business do you want to discuss?"

"Well," explained the American, "I've taken fancy to this little exhibit, and I want to buy your Zoo for my kids."

"Nothing doing," answered the keeper, "but I'll tell you that we might buy your kids for our Zoo."