The Customer is Always Right
    I actually witnessed the conversation in this comic strip, though I admit taking some liberties with the customer's order.  I love going to coffee shops.  It's a place to relax, to me at least.  So encountering the obnoxious customer does irk me since, quite often, the baristas in a cafe that I frequent are usually my friends too.  I can't stand it when someone feels like they're better at existing than anyone else.
    Oh, I usually go to places with a "coffee ...

To be honest, I'm pretty much blown away by anything astronomers do.  From their applications of positrons to figuring out the average color of the universe.  And yes, it's "Cosmic Latte".