An American goes on a British bus after being in war. He wants to sit down, so he goes to the back of the bus to sit down, but there is an old woman on the seat with her dog in the next one.
The man says, "Will you move your dog?"
The lady says, "Oh, you Americans are always so demanding," and she says to sit somewhere else. He goes through and finds no seats, so now he's at the back again. This time he throws the dog out the window and sits down.
The man in front says, "You Americans always do things wrong. First, you drive on the wrong side of the road, then hold you knife and fork wrong, and you threw the wrong bitch out the window!"