Once Boomer manages to escape the yard, he is likely to continue with this unwanted and potentially dangerous behavior. (See References 1) Being able to explore his surroundings beyond the yard, chase squirrels or flirty cats, and get that often desired social interaction, is rewarding and reinforces his behavior. To avoid having to deal with an escape artist dog, reinforce the fence before allowing your furry friend into the yard. Chicken Wire to the Rescue An extension of chicken wire attached to the bottom of the pen can effectively dissuade Boomer from digging his way out of the pen. courtyard. Make sure the wire covers any gaps at the bottom of the fence and bury it vertically, about 1 foot deep in the ground. When Boomer starts digging, he will encounter the wire fence, which will discourage him and make him realize that there is no way out. You can also fold the bottom part of the chicken wire inward so that it sits horizontally and prevents Boomer from digging deeper. (See References 2, p. 226) Blocking all access If Boomer cannot get close to the fence, he will not be able to dig under it e.g....