Did I do anything last night that suggested I was sane?

Insanity is catching.

It's madness, of course', thought Moist. 'But now I've got it, too.

This is a lovely party," said the Bursar to a chair, "I wish I was here.

The only really sane person in there is Igor, and possibly the turnip. And I'm not sure about the turnip.

Do you think it's possible for an entire nation to be insane?