You will never have an uninterrupted lunch.

In retail, you will never have an undisturbed break, lunch or otherwise. The Shopper has some kind of almost-magical ability to know when a shopkeeper is taking a break and a natural drive to interrupt it. I have not a clue how it came about or what drives it, but this is a remarkable ability. An annoying ability, to be sure, but a remarkable one no less.

-The Retail Explorer