The youngest took off all the time. Figured out the deadbolt at 18 months. She liked to play hide and seak in stores, hiding in clothes racks. And ran fast.
She was a leash kid. I tied her to me in crowds.
The neighbor's called my wife to see why our toddler was playing 6 blocks away. She told her she was sleeping upstairs.
A local kid, age 5, did that a couple months ago and ended up in someone's pool in the middle of the night. Didn't turn out well.