A man asks a farmer near a field,
A man asks a farmer near a field, “Sorry sir, would you mind if I crossed your field instead of going around it? You see, I have to catch the 4:23 train.”The farmer says, “Sure, go right ahead. And if my bull sees you, you’ll even catch the 4:11 one.”
The change from nice to threatening/indifferent is the funny part of the joke.