Some years ago a keen grade 3 flying instructor inveigled a TIF (trial instructional flight) student to part with some cash to go for a flight. Winds were 25 gusting 40 knots and several wiser pilots watched this clown trying to taxi to the runway. He had one hell of a job taxiing but full marks for perseverence he made it to the runway. He was cleared to line up and hold then carried out a flight controls full and free movement check. With full back stick applied and a 40 knot gust the C152 got airborne in half a loop and crashed behind the threshold. An expensive but remarkably good demo of effects of controls.