If you have dreamed of killing a dog with a gun in your dream: Try to stay calm, you need to focus on matters that concern your home, property or family. To kill a dog with a gun in your dream indicates that you will defeat the enemy, scrutinize your friends, find peace by investing in a good and beautiful life and future. To scare a dog with a gun in your dream means that you eliminate some people around you and that you have a few and good friends.