just next time

Soo I was at starbucks and what happened was a guy got up to go to the bathroom. when he came back his drink was gone and one of the people working there threw it out. He actual went back up to buy another but they realized they threw out his drink. Soo obviously it was the starbucks employee's fault. Soo that is normal but then the employee said " just next time" take it with you. Okay WTF, I would never get up and take my drink with me to the bathroom. I would figure if i was in a place like starbucks where people sit down and enjoy there coffee then no one would throw it out. I feel like when people feel like they are right they say that classic line, well just next time. That is such a F U kind of thing. Like you would make the same mistake twice kind of thing, and thats just a way of saying you are wrong. Idk its just stupid that people beat around the bush of trying to make themselves be right. well I think I am rambling so just next time I will make it short and sweet and to the f Ing point