A guitarist and his wife were celebrating their twentieth wedding anniversary. They had decided to meet at a restaurant after work. The wife arrived at the restaurant at the appointed time, but the husband was nowhere to be found. So, she called him on his mobile phone and asked why he wasn't there.
"Well," he explained, "remember a few years ago we stopped into a little jewelry store on 34th Street and you fell in love with a sapphire necklace but we didn't have the money for it and I promised you that one day we'd have the money and I'd buy it for you?"
"Oh, my!" she excitedly replied, "Of course I remember! Do you mean it's still there?"
"I have no idea," he answered, "I'm in the guitar store next door and they have this really great old Martin D-18 for sale...."