So a guy with a nice suit walks into a diner, and an ostrich follows him.

He orders eggs and bacon, the ostrich says "Same here", they scarf down their meals, the waitress brings the bill, the guy pays it, with exact change, and both leave. Next day this repeats, the guy orders a milkshake, the ostrich says "Same", etc. Again, exact change. Next evening they order a steak and fries each, etc. The waitress asks: "How come you wear such a nice suit but never tip, always having exact change down to a penny, and what's with the ostrich?" The guy says "Oh, that's a bit of a long story, but it's kind of crazy. You see, I'm a pilot. I was flying over the Sahara desert doing some aerial photography, but the engines gave out and the plane crashed. Miraculously I survived and strode through the desert for three days and three nights until I found some old ruins, where I took shelter from the scorching sun. In there, I found an old lamp, rubbed it, and a genie came out, promising me three wishes for freeing him. So for my first wish I asked to be returned from the desert back home." "That's right." said the ostrich. "For the second wish, I asked to always have enough money for anything I'd like to pay for. Now I always have just enough money in my back pocket, and not a penny more!" "That you do." said the ostrich. "That sure sounds convenient." said the waitress. "But what's with the bird?" "Oh, for my third wish I asked to be followed everywhere by a talking ostrich."