One of the best ways to manage over-excitement is to direct your puppy's energy toward something healthy like an activity or toy. Structured play like Fetch, plus access to mentally stimulating puzzle games and toys, are all super useful tools to help your puppy maintain activeness. Do reward calm behavior.
If you catch your puppy misbehaving, try a loud noise such as clapping your hands or a loud "uh-uh" or a sharp “off”. Remember, reprimands need to occur while the behavior is happening, preferably just as it begins, and never after.
If your dog jumps and bites you when he is excited, it's because he wants attention from you. One trick is to get down on his level instead of having him jump up to yours.
It is common for puppies to bite or "mouth" hands and clothes during play or when looking for attention. As annoying and sometimes painful as this behavior may be, it is normal and an important developmental behavior.
In one posture, hold the pup over your head, firmly supporting him with both hands and stare into his eyes (staring is a dominant behavior to the dog). Maintain this position until the pup has been still for 10 seconds. He must be still for that length of time or he hasn't submitted to you.
Say, “stop”, and immediately stop moving yourself. Do not move your feet or legs (this actually rewards the biting—movement is super rewarding to dogs). When your pup stops, praise him like crazy and then follow up by directing your pup to a legal thing to put his mouth on (a toy or chew).
Frustration-Elicited Aggression
A dog who's excited or aroused by something but is held back from approaching it can become aggressive, particularly toward the person or thing holding her back. For instance, a frustrated dog might turn around and bite at her leash or bite at the hand holding her leash or collar.
Puppies can often get overstimulated which causes them to get into a biting frenzy, or just like a toddler that throws a tantrum when it's time for a nap, your puppy may be showing you that they need crate/playpen time to unwind and relax. Puppies also may bite in order to get OUR ATTENTION!
Teach your dog that they receive no attention for jumping on you or anyone else. You can turn your back and only pet your dog when all four paws are on the floor. Teach your dog to do something that is incompatible with jumping up, such as sitting. They can't sit and jump up at the same time.
Undesirable behavior exhibited by dogs between puppyhood and adolescence, such as destructive chewing, jumping on people, and play biting, is medically referred to as pediatric behavior problems. Though these behaviors may be perceived as a “normal” trait of a puppy, it is often not acceptable behavior for a pet.
Appropriate, frequent, and regularly scheduled exercise sessions, providing appropriate outlets for normal behaviors, along with an early start to training can go a long way to preventing most unruly behaviors. Waiting to train your puppy until it is 6 months of age can often let these disobedient behaviors take hold.
A Matter of Seeking Attention/Engagement
If your puppy is normally calm in your presence and starts acting hyper when your husband comes home, he or she may misbehave as a way to get some attention.
Most puppies start to calm down as they approach their maturity age, which is usually around 12 months, but for larger breeds it can be more likely to occur between 18 months and 2 years.
The “Witching Hour”
Many owners find that 7 a.m. and 7 p.m. bring out the worst in their puppies! If you know that a particular time of day prompts crazy biting, do your best to manage/prevent the behaviour and engage your puppy otherwise.
For a dog who is acting out of fear or frustration (for example, a dog who is barking and lunging on leash), using the word 'no' to stop the behavior without helping to alleviate their fear or frustration will often lead to an escalation in behavior, such as growling, air snapping, or biting.
Use firm commands when required to make your puppy stop biting. This goes for puppies of all ages. There is nothing wrong with quickly giving a loud and firm “No bite!” command if you feel a tooth at your hand. You also can yelp or say “ow” in a loud, high-pitched tone.
When playtime is over, give her a potty break and then put her up for a rest. When she is loose and attacking your clothes and legs, stop moving and ask her for another behavior that you will reward. If this doesn't work, calmly put her in her crate with a small treat for a puppy timeout.
Act like the alpha of the back and show him who is boss. Look him/her in the eye: When you give a command, look straight at your pet. Make sure he can see that you mean business and that it is not a command to be disobeyed. Always hold eye contact with your pet, no matter how big or small he or she is.