Imagination
When I was a teenager I got strange marks on my left leg. Three dots made a triangle. They were black, and I didn’t know how they appeared.
My imagination couldn’t be controlled back then, so I thought about it and finally told my mom I’ve been kidnapped by aliens. She didn’t believe. At first. But I continued to be persistent with that story for months and my mom freaked out.
It was funny to watch mom’s scared look when I mentioned the aliens.