Yesterday, as the boys left to follow the tow truck to Corydon taking their car in to repair the starter? or whatever turns out to be its ailment, Wolfy did not shut the inside door. Before I got over there to do it, Jabberwock took advantage of the storm door's continued infirmity and bounced it open, going onto the porch.
I followed. He jumped into the strawberry bed, then ducked underneath the house, freedom won. If he's returned, he's forgotten to give his very distinctive Siamese chirp.
This is the second time he's used the unlatchable front screen/storm door as an escape hatch. He came to the front porch the first time, which allowed me to get him back inside.