Are you the unhappy owner of an out-of-control, aggressive dog? Are you worried he sees himself as the dominant member of the family? Do you get nervous around your dog when strangers show up?

Even with these troublesome problems, you love your dog, and don’t want to give him up (or worse – get a call from animal control demanding you take some kind of action). But how can you turn your aggressive dog into a friendly, obedient dog you can rely on around yourself, your family and visitors?

Obviously, one of the most serious problems that comes with an aggressive dog is biting. Biting can cause serious harm in and of itself. It can also cause serious legal problems. Other unpleasant aggressive behaviors include growling, angry barking, bared teeth, and lunging or snapping.

You can easily tell when a dog is starting to get aggressive. He’ll stand very still and square. His hackles (a ridge of hair that travels the back from the nape) will rise, and he’ll have a focused, intent expression on his face.

It’s common for a non-neutered male to be unusually aggressive toward other dogs. At the bare minimum, you’ll need to neuter your aggressive dog if you want him to have a chance at developing normally friendly interactions with other dogs. Neutering’s most useful in this respect before the dog’s reached puberty, but don’t let that prevent you from getting him fixed if he’s older.

Another typical reason for aggression in dogs is their fear. Often, a nervous, fearful and aggressive dog has suffered cruelty or neglect. Unfortunately, these dogs can be especially dangerous, because they direct their aggression at people. If your dog has ever bitten or attacked anyone – whether a family member or stranger – you must take care of the problem right away. Get expert help. Start with your vet, who might be able to recommend the right animal behaviorist to intervene before your dog seriously hurts someone or moves into legal territory you can’t control.

The best way to prevent aggression in your dog is to train him correctly as a puppy. You’ll want to slowly but firmly establish yourself as the pack leader, a message you’ll underscore in countless little interactions with him. Certain simple exercises, like taking his food and returning it with some warm words of praise, or making him sit before he eats, will let him know who’s boss. A dog training philosophy sometimes called “there’s no free lunch” goes a long way toward establishing your dominance without ever being cruel.

Other useful techniques are to approach him while he’s sleeping, waking him up slowly so he learns to take it in stride even when he’s vulnerable. Expose him to strangers and other dogs as young as possible – obedience class is invaluable for this sort of thing. Socializing your dog when he’s young will make him feel more comfortable with strangers when he’s older, which makes a world of difference.

One final point – never, ever punish or yell at your dog when he’s acting aggressive. If you’re getting out of control, this is a sign to call in expert help, not raise your voice or hand against your dog. It’s guaranteed that yelling or hitting will make the situation worse. Instead, say “NO” with a stern and disapproving look, then go from there – to a dog behaviorist if necessary.