Real-world metaphors

Finals Metaphor from a friend who is a freshman, off of Facebook:

Brent is starting to see the Christmas lights shining behind the dark clouds of finals!

Since I am collecting real-world examples of metaphors and grammar errors, and because it is so timely, I thought I would post it here.

Why we yawn says, “Yawning is apparently the fan in your head’s CPU.” This metaphor ultimately came from a Discovery article/