Here's a dumb one for you. Twenty seven years ago, this bored CFI took up a Tomahawk with another bored CFI. We wanted to practice a spin in it. We had never done a spin in this type of plane though but it's a plane, right? Good thing we started high. Couldn't get out of the spin. Opposite rudder, full nose down. Nothing!!!
Providence we recovered after, I don't know how many turns, and just some 900 feet above the ground.
We discovered the placard "no spins approved" over our heads afterwards. Stupid! Stupid! Stupid!