I've regained my equilibrium. The yak made it to town, and the textbook was brought to me by the person who received it by accident.
And I otherwise had a tremendously productive day, and then proceeded to get into major mischief. Good mischief.
Really good mischief.
Go listen to some good music: "Waterloo" from the album Waterloo by ABBA. No, I'm not telling you now. You'll figure it out.