Ha, I’ve been reading past posts of Franklin Habit’s blog, The Panopticon, which you should read too. He offers this piece of advice to new knitters, when first confronted with the idea that, not having bought an extra ball in the first place, there might not be anymore of the yarn you need and the shipment might not come in for a bit:
“Yelling at the yarn store lady and storming out in a huff is not the answer. Yarn store employees have long memories. And sometimes blogs.”