Someone please tell me: what is the deal with the wide inconsistency of coffee cup sizes?

I currently have a takeaway cappuccino on my desk at work. It resembles the size of what I call a medium, yet when I ordered it I had to ask for ‘large.’

Yesterday I ordered from another café, and their version of a medium is actually slightly bigger than the large I’m looking at right now. The size matches what I would call a medium, but how is today’s large coffee smaller?

This shits me. Cafes that only serve regular coffee sizes, shit me. Especially when they border on the ‘small-pathetic-size.’ (Small sizes should not exist in coffee world). Cafes that serve itsy-bitsy coffees, and market them as ‘large,’ shit me.

All you cafes, you shit me. Call a medium, a medium. A large, a large. And call a small, a pansy. That’s it. Simple.

A rose by any other name would not smell as sweet… in this case the coffee still smells good but there’s not enough of it, damn it.