Photo Booth

So, something just happened and I wanted to share it with you guys… I stopped by the supermarket on my way home from work. There's a photo booth next to the vending machines there. When I arrived at the store, someone was inside the photo booth. I couldn't see their face because the curtain was closed, but they were wearing black leather shoes and black pants, so I assumed it was an adult male. I went on my way and did my shopping… and came out about ten minutes later. I was thirsty, so I bought a drink from the vending machine. (It's cheaper in the store, but I was drawn to the vending machine exclusive item…) When I went to the vending machine, the same person was inside. I wondered if it had really taken that long? While drinking my juice, I kept glancing over. After a few minutes, I still couldn't hear any machine sounds, and they weren't coming out at all. Getting worried, I peeked inside, and there was no one there. When I was buying from the vending machine, I could see their feet. I was drinking with my back to the vending machine. If they came out, I would see them. Where did the person I saw go…?