Anyone who knows anything about animals can tell you that dogs develop stress related problems. These problems are what humans consider misbehaviour. There are three types of stress (these apply to people too):
1. EUSTRESS- the positive stress you can do something about. If you are too hungry, you get stressed. It relieve the stress you eat. EUSTRESS is positive because it looks after us and keeps us alive.
2. NEUTRAL STRESS- neither positive nor negative. The TV is loud bit out doesn't bother you enough to turn it down.
3. DISTRESS- this is negative stress. You are starving but you can't get food; you're in distress. This affects people abs dogs both physically and mentally. It can have long lasting effects.
Not all dogs that show these behaviours are necessarily stressed. If a house broken dog pees in the house it could be a sign of a health problem. If a young puppy chews it is teething. A way to combat stress is too teach the dog that whatever it is that they are stressed out about is not that bad. For example start training a dog that has separation anxiety that it is ok and fun to be left alone. I would consult a professional positive dog trainer/behaviourist for this. Give appropriate chews such as antlers or bully sticks. You can give your dog a KONG with their kibble, spiced up with cottage cheese. Giving more exercise is usually key too.
Keep on the lookout and react early.