--You never forget your spankings and what you did to deserve it.--
I remember several of my early childhood spankings. However, I have no idea of what brought them on.
I don't remember almost any of my spankings/slaps/smacks. That's how effective it was - they were few and they were basically all too early for me to recall (I only have a few memories - vague and dream-like - from before I started school at 5).
Only 1 I recall (including my parents; never mind my uncle spanking me at his house for us playing "doctor") was when my cousins and I took a nest of baby birds out of a tree and fedd them fish food on the ground nearby. When my dad and aunt and uncle found out what we were doing, they were so mad we had essentially "orphaned" little birds. We all had to run the gauntlet and got smacked on the rears well by all of them (after a bunch of hands-on-hips indignant lecturing).