Knitting Rage

I can't be the only one to have experienced this: Have you ever gone to the yarn shop only to find that they're out of the one needle size you need? Another favorite: You're looking for yarn for a sweater for a loved one. You go to your favorite yarn shop, but of all the yarns you like, there are never enough hanks in stock for a sweater. I'm cheap, and impatient, so this always annoys me. Plus I want to touch and really get a good look at the yarn (sometimes dye lots vary so much it's scary). Sometimes it's enough to make me want to scream...