Me: What's this?
SH: Ketchup. It was on sale.
Me: We don't need it.
SH: It was only 78 cents.
Me [yanking open the fridge and pulling out the bottle of ketchup that I brought from my house in Memphis IN 2008 and is still HALF FULL]: Look. We don't use that much ketchup.*
SH: But it was a bargain!
Me: It's not a bargain if we DON'T NEED IT. We use ketchup at the rate of one bottle every five years.
SH [mutters]: It was a good deal.
* Plus there is another bottle in the pantry.