Then you leave your paddle in the trunk of your car. The once soft and sticky rubber (that is so crucial to your game) melts into the foam betrayal of the case that was meant to protect it. You remove the rubber through razor blades and sandpaper + elbow grease. You order new rubbers from the internet and patiently wait, looking forward to the future schoolings you will give your colleagues.
Wait a minute... you curse, you realize your paddle is a bit warped now. This injustice prevents you from sleeping well. You cannot stand the thought that this once noble implement, the extension of your will and motor function, is not as perfect as it could be.
So, you resolve to bring it back to its former glory.
Step 1: How to make a not-flat thing flat
The basic design is Flat thing + Flat thing. You remember that trees are a source of flat things, and you go find some cut trees. You choose oak, which is a nobler and stiffer flattenerer at like $9 for a couple of feet of 1"x8".