A childhood belief about around the house

My father used to have an old fashioned typewriter in his study. He told me when I was about 6 years old that I should not try to pick up the typewriter as it would be very dangerous. I understand now that this was because the typewriter was heavy. One day soon after I saw some sets of unused staples stuck together beside the typewriter and i did not know what they were. My little mind assumed they had fallen out of the typewriter as they were sharp at the edges. Later I had recurring dreams about picking up the typewriter and all the staples falling out onto the floor. Of course in the dreams I wore no shoes and would try to get out of the room without standing on the upturned sets of staples.