There's an airfield, and a farmer is always watching the jet planes taking off. So a pilot says to the other: we should take that farmer with us sometime, he's always watching us. So they take him with them. The jet makes a fast turn left and the farmer says: ah, I expected that! Then a turn to the right, and again, 'I expected that'. Then the plane does a loop, and the farmer says: 'Hmm i didnt expect that'. So they land and the pilot asks: why did you say I expected that at the turns but not at the loop? Well, says the farmer, I expected I would crap my pants but I didn't expect the crap would slide down my neck!