My dad banning me from reading children's books as a pre-teen. He wanted my reading to stretch me. I didn't like it at the time, but it has stuck with me and it has helped me to (usually) not seek simple filler but meaningful, thought-provoking reading material.
Social/conformity anxiety so great that I always relied on cues from others to determine how to act. When I worked with my dad, on the way home, I wouldn't roll down my window unless he did so first (and roll it up as soon as he did); I would not open my beverage unless he did first. Just one example of a lifelong pattern.