It's not okay to get overly worked up about things.
Tom is running late for work but stops for coffee anyway, which is taking a lot longer than he expected.
Tom wants to speed the process of getting his coffee along.
Tom asks the Barista if there is anything he can do to get the coffee more quickly, and explains that he needs to get to work right away.
Tom tells the Barista that if he gets into trouble at work over the wait, he will be back to get the young man fired from the coffee shop.
The Barista offers to give Tom a ready made drink instead, saving him some time and relieving pressure on everyone.
The Barista apologizes and explains that brewing the coffee takes a certain amount of time, which he has no control over, and Tom feels guilty.