<human>: Can you provide a brief rundown of the text in within 3 sentences?

Unlike a lot of post this happened about 5 minutes ago.

Little backstory I  am half black and half white and I live In japan for work. been here 2 years and do not know Japanese. Anyway I was in a rush to catch the train because I lost track of time at an arcade. I was thirsty so I quickly went into the small convenience store outside the train station. As I walked in I seen the purple bottle of grape juice at the back of the small store and thought it would cure my thirst. I seen the image of grapes and grabbed it without looking bought it and left. As I left and started drinking it I noticed a burn in my throat and a sour taste and spit it out with out thinking of the Japanese guy in front of me. I apologized multiple times and went to get some paper tp from the bathroom (japan doesn't really have paper towels) then gave them to him to clean up. I apologized again then left. I missed my train. I looked at the drink and it says grape vinegar in English. -facepalm
<bot>: at arcade to long rushed to get drink and catch train. Didn't realize drink was grape vinegar and spit it on Japanese guy then missed train.