5? My toddler son used to get out of the locked house, locked yard and take walks. He would find a trail, and be gone. Thankfully, we had a german shepherd that took his guard duties very seriously and never let anyone come near the child while he was wandering around.
That wasn't the first time he had done it.
He wandered of once when he was 2,I never figured out how he unlocked that sliding glass door or how he climbed out of his Crib.Thank fully he just got of the back porch when I found him.You can't turn your back on the little guys for one second.