Customers who ask stupid questions

Question: *Looking at the menu* How much does a small cost?

Me: Prices are listed above.

Customer: *Gets mad.*

You are looking at the menu, and you asked a question like that?

I don't need to read you the prices if you are looking at the menu.

I DON'T GET PAID FOR READING TOYOU.

I HATE THIS QUESTION THE MOST.

I will only answer this question if the person is old or squinting their eyes.

Question: How big is a small/medium/large?

The cups are displayed in front of the customer.

Me: *pointing where the cups are*

It's in front of you and you look everywhere from left to right. >_>
Some people needs to observe their surroundings more.