dh left a gate open. He has learned to watch all gates now. We have four, but two of them are rarely used. We have padlocks on them, sot that no one can just open them to get into the backyard for something we need. One of the gates is actually chained as the ground has changed in that area, and the gate can pop open with a shove.
By the way, we chased a neighbor's Husky for almost an hour one day recently. He was new to the home and got out. Of course, he just ran. The owner finally found him, called to him, and he came right away. He had dug out of their fence. The Husky breed is known for being escape artistic.