Keep your pet safe in a backyard.

Fill in holes under the fence with dirt, rocks, concrete, etc.
Replace old, worn out pieces of fencing routinely.
Have a lock on your gate(s) at all times.
Never leave a gate open accidently. Remind friends and family to always double check that they closed the gate behind them.
Do not leave pets and children together unsupervised.
Do not leave pets that are known jumpers or diggers unsupervised.
Remove any items that could injure your dog old wiring, metal pieces, anything lying or sticking up out of the ground precariously.
Never leave a dog tied up unattended they could tangle themselves up easily.
Provide a shelter and water at all times for your pet when outside.
Stay vigilant.
Report suspicious people that seemed to be eyeing or trespassing on your property.
If your dog is terrritorial please put up a beware of dog sign to warn people to stay away.