I can see it now...
Wife, on her way out the door: "Honey, since you're off today, can you do me a favor and post an ad on craigslist? The fridge is getting full of eggs. Let's start selling them."
Husband: "Okay, sweetie. How much should I sell them for?"
Wife: "Oh, I dunno, they're kinda sought-after, better than store-bought eggs. What's say we ask two fifty a dozen?"
Husband: (Lights up eyes) "Consider it done, babe. I'll post the ad today."
Note: Wife is thinking two fifty... as in "$2.50". Husband is thinking, "Sought-after.. $250".
Edited for typos I just noticed.