You're a 7 year old child who was taken to a playplace inside a mall, since your mother is busy shopping. You decided to play in it's most popular attraction which was a supermassiv ball pit that covered the whole area. You you were having the time of your life in this large ocean of colourful plastic balls until you decided that you want to get yourself out from it. Right after you got out, you felt like there's something stuck under your shirt. It turns out to be a red ball from the ball pit that you just played in, so you decided to remove it and drop it in the pit. As you were walking away, you felt something gently touch your foot. You look down to see that it's the same ball that was stuck under your shirt. Didn't you throw this ball back in the ball pit?