Husky puppies (any puppies, I guess) are energetic and bouncy and it turns out they can go through screening. The next summer we figured they were older, we repaired the screen and, Rosie blew through it immediately. Unintentionally, I am sure.
This year, J repaired the screen, and we added hardware cloth on both sides, stapling it to the wood, so it stands out from the screen. Victory! It doesn't latch and the dogs quickly (well, one was a little slow- I'm looking at you Anna) figured out that they could push it open and let themselves out. So now we will often hear dogs running from the living room (where they can sit and check out people coming down the road), banging through the door, and barking madly out front. The hedge hides most of the fence there, so passersby can't see much of the dogs, just hear the ravening beasts.
The best part? Dogs can't open the door to come back in. Although it doesn't close completely sometimes, so I have seen an eyeball or a nose in the crack, but no one has managed squeezing in yet.
Now here's something for cat lovers too.