spins from turns
I had done a lot of intentional spins in gliders before taking up power. My instruction was against the Australian syllabus in the 80's (I learnt in Papua New Guinea). I then converted this to a UK licence on return to the UK.
Spins were then still requried for the UK licence. These were entered by stalling and then kicking in rudder - not something you'd naturally do in a Cessna 152 so a bit artificial. My spin recovery training in PNG was by entering a spin from stalling in a turn - that was also in a C152. The sudden flip into a spin in the opposite direction of the turn was unforgettable and a vivid demonstration of how the the streched final turn can kill. It's something I won't forget so I'm sure it makes me safer.