It could be yours, your sibling's, friend's, neighbor's, cousins, mom's, dad's, or the toilet's. (not really the toilet unless it involves taco bell.)
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I've told this sory before but it's still my top one embarrassing story: When I was still in my job training I stayed behind one day and missed the last bus. I could have walked the few miles but it was pouring rain so I decided to call a cab. I waited at the grocery store close to my work. It's important to mention that most caps are light yellow mercedes where I live so naturally when a light yellow mercedes rolled up I walked torwards it. I was a bit confused when the driver got out. I looked at him and he asked me if he could help me. I said I ordered a cap. Turns out he wasn't a cap driver and just wanted to buy dinner. I apologised several times. He was super chill about it and told me his car used to be a cap and he bought it from a local cap company. He was really nice but it was so embarrassing. Why the f did I assume a car without any sign is a cap? He wished me a good evening and walked past me. Once he was gone I started to cry. This was 4-5 years ago and it still haunts me.