A childhood belief about hair

When I was 4 or 5 years old, my dad wore a mustache. Sometimes my sister and I would get up on the weekends and hang out in my parent's bedroom with them to watch cartoons. Occasionally, my dad's mustache would be missing. He always told us that it fell off while he was sleeping. We would look all over the bed, under the pillows, etc. trying to find it. It wasn't until I was about 10 that I realized that he got up in the morning and shaved before my sister and I had gotten up. I hadn't thought about too much before then, I just accepted it as a fact that mustaches could fall off at night.