Here are some ways to make your house a safe house:
Lock your doors
Make sure to train everyone in your house (adults and kids) in firearm safety
If you have any kind of weapon make sure it's safely stored, unloaded, trigger locked, and locked in a gun or pistol box with ammunition separately locked with different keys for all locks. Store keys out of reach of children in locations away from weapons and ammunition.
Check frequently to make sure the storage is secure. Follow all federal, state and local laws about storage, registration, carrying, and use.