Did you know that this:
Could do this:
It's true. One day I noticed that a large grasshopper was on my porch screen and he was eating it! I looked it up and sure enough, I am not the only one who has grasshoppers eating their screens.
If you ever see little holes on your screens you can simply spray the screen with bug spray and it will help keep the bugs from eating through.
As for me, I guess I will just have to get a new screen for my door.