An old friend from abroad, whom I was expecting to stay with me, telephoned from the airport to tell me that he had arrived. I was still at the office at the time, but I had made arrangements for his arrival. After explaining where my new house was, I told him that I had left the key under the window. As I was likely to be home rather late, I advised him to go into the kitchen and help himself to food and drink. Two hours later my friend telephoned me from the house. He said he was listening to some of my records after having just had a wonderful meal. When I asked him if he had reached my house without difficulty, He answered that he had not been able to find the key under the window, but fortunately the living room window just by the apple trees had been left open and he had climbed in. I listened to all this in astonishment. There is no apple tree in front of my living room, but there ’ s one in front of my neighbor ’ s.