Lots of gift, but math's not one of them.

My wife recently got a gift card from someone, and she asked me to look up the balance online.

Me: "It was ten dollars."

Her: "Cool! I have another one for the same store for $20, so that's like 35 bucks!"

Me: "Thirty."

Her: "Oh. Right."

Hello. What?

My phone rings. It's her. As usual.

Me: "Hello?"

Her: "Oh, hey. I forgot why I called you. Let me call you back." Click.

She never called back.