Opportunity cost

I come home from grocery shopping pretty proud of my savings and bargains.

Charlie finds the very long receipt.

Charlie: You got a lot of groceries. How much did they cost?

Me: $130

Charlie: You had $130? (Very sweet big innocent eyes)

Me: I don't any more. I bought groceries.

Charlie: We could've gone to Chuck E. Cheese

Me: What would we eat the rest of the week?

Charlie: We could just go out to eat.

Me: You have to have money to eat out.

Charlie: We could use coupons.

Me: Where would we get the coupons?

No answer.

He enjoyed homemade waffles and pancakes for supper.