The same action yields the same result
A couple of hunters chartered a small plane to fly them to a forest, and made an appointment with the pilot to come back and fetch them in about two weeks. At the end of the two weeks, they had shot a lot of animals that they wanted to load onto the plane.
But the pilot said, "This plane won't be able to take more than one wild buffalo. You'll have to leave the others behind."
Then the hunters protested, saying, "But last year, another pilot with the same airplane let us take two buffalos and some other animals in the plane as well."
So the new pilot thought about it. He was a little bit skeptical, but finally he said, "OK, since you did it last year, I guess this year we can do it again." Then he loaded the two buffalos and a few other animals in, and the plane took off. Five minutes later, it crashed in a neighboring area.
The three men climbed out and looked around, and one hunter said to the other, "Where do you think we are now?"
The second one surveyed the area and said, "I think we're about one mile to the left of the place we crashed last year."