Our silly dog (Koko, a male Bichon Frise) loves to stay outside, we sometimes have to trick him to get him to come back inside.
He also loves to dig, our back yard looks like a mine field with several craters.
Today he found a way out of the back yard I think he dug under the fence.
When I get home today I have to look around the yard to see where he gets out, then I have to fix it so he can't get out that way anymore.
I already have the perimeter of the fence lined with landscaping timbers, bricks and other items. That seemed to do the job for several months.
Ah, the joys of pet ownership! :-/