Children are always being told things are dangerous, such as fire, escalators, roads, and so on. Were there any things which you hesitated to use as you got older, because "danger" had been drummed into you? (Lighthearted, obviously: otherwise this thread is too dangerous!)
Matches were one of mine. I could hardly bring myself to light them, in case I got burnt.
My grandmother emphasised how dangerous her appliances were, such as her ancient twin tub, and her electric lawn mower, and I almost forbade her from operating them, on this basis. (I was six at the time.)
In my first year at secondary school, I was astounded when we were made to use methylated spirit (to erase permanent marker), from a bottle prominently marked "poison".