I was on a team working to put up an art exhibition. I was designing the introduction panel, which was going to be a 2m by 2m panel.
It was the most important panel for the exhibition since it would contain all the significant details about the exhibition, so I had to be really careful about font choice, placement, etc. I did the design in Photoshop at a 1:1 ratio so I could get the dimensions exactly right.
Client: (looking at the screen, where the design doesn’t LITERALLY measure 2m by 2m, for obvious reasons) Why is the mockup so small? At this size, it will look terrible when we blow it up to print.
Me: Haha, no, it’s just because you’re seeing it at about 15% of the actual size, so it fits on the screen and you can actually see the entire design. But it’s at a 1:1 ratio. It’s designed exactly to fit a 2m by 2m panel.
Client: (pointing at the Photoshop ruler at the top of the screen that ends at 200cm) But this says it’s only 200cm.
Me: Yes, 200cm is the same as 2m.
Client: No, it’s not!
FYI, she has a bachelor’s degree.