A childhood belief about general

When I was 4 or 5, of course I didn't understand digestion. I thought that our bodies were pretty much hollow. Throughout our lives we would eat and eat until the food level finally got up to our necks and we died. I also believed that I could drown from drinking water and lived in fear that it "would go down the wrong pipe." Needless to say, I didn't eat or drink much when I was little, afraid to fill up too soon and die, and afraid to drink and drown.