A childhood belief about going shopping

When I was little, I would sometimes wait for my mom in the car while she ran into the store or finished her shopping. I used to believe that if I sat perfectly still when someone walked by, they would think I was a statue and not kidnapp me. Sometimes it occured to me that I might not pull it off because I was wearing a seatbelt and clothes but overall I thought it worked well. I believed this until I was about 10.