A couple on the bus:

Guy: "Oh my GOD, it's so COLD!"
Girl: "Yup. It is."
Guy: "What's your problem?"
Girl: "Nothing..."(She says this in the way there is so something wrong, but not admitting).
Guy: "Um, OK... GOD, I think my brain is frozen."
Girl: (Mumbles) "I think your heart is frozen."

Me: (To myself) "I'm totally going to use that."