We're All Mad Here

Had a very good evening at the 17th birthday party of the sci-fi group I go to.
The theme was the Mad Hatter as its also the 150th anniversary of Alice in Wonderland.

“But I don’t want to go among mad people," Alice remarked.
"Oh, you can’t help that," said the Cat: "we’re all mad here. I’m mad. You’re mad."
"How do you know I’m mad?" said Alice.
"You must be," said the Cat, "or you wouldn’t have come here.”