Jack works in an office in a small town. One day his boss says to him, "Jack, I want you to go to London, to an office there, to see Mr White. Here is the address."
Jack goes to London by train. He leaves the station, and thinks, "The office is near the station, and I can find it easily. "
But after an hour he still looks for it, so he stops and asks an old man. He says,"Go down this street, turn to the right at the end and it's the first building on the right. " Jack goes and finds it.
Three days later he goes to the same town, but he can"t find the office. He wants to ask somebody the way. He stops and sees an old man. It is the same man. He is very surprised and says,"Are you still looking for that place.?"