Unfiltered Story #160182

(I work in a gas station well known for its coffee and sandwiches, I have just finished working a 15 hour shift and it is 5:30 in the morning, an older gentlman approaches my coffee station and starts pouring a cup of decaf, I was told off the day before for not interacting with customers enough)

Me: Good morning Sir, Oh, you are getting decaf? I’m so tired that I couldn’t possibly drink decaf!
Old man: (Throwing his drink and cup in the trash and storming off angrily)
Me: Oh… Ohkay
(A few minutes pass and I forget about the incident until my General Manager approaches me)
Manager: That gentleman said you were extremely rude to him and made fun of him for the type of coffee he was drinking, watch what you say to people