Planet Mad

Guides tonight: manic. My nerves: frazzled. Until...

Guide A: Mad - have you got a ruler?
Me: Yup - here you are: my special dinosaur ruler, with centimetres on one side, and a timeline of dinosaurs on the other.
Guide A: Cool. What's this one?
Me: That's a Trilobite.
Guide B: Oh - I've got one of those...
Me: Really?
Guide B: Yes, with Kings and Queens down one side.
Me: What - a trilobite?! With kings and queens?!

It turn out that she meant a ruler. Shame. I got quite excited for a moment.