I have a 7 1/2 month old boxer puppy that turns crazy come dark. We have only had him for 2 1/2 months and he has come a long ways but he has a long ways to go. The people that had him before us was not able to spend enough time with him and he was crated a lot. We work so he is kept in a crate/wire cage during the day. Most days he is in there around 6 hours. I come home the first thing I do is let him out and go in the yard for throw/fetch/chase with toys and balls and try really hard to wear him down. Once he lays down or goes to the door to get back in to cool off then I go in the house to start dinner. Once my puppy is calm and cooled off I feed him his dinner. Once again he has free to run in and out playing whatever he wants to do. Once it's cooled down to a bearable temperature (live in the south) around 7 or 7:30 we head off for a 2 to 3 mile walk EVERY night. Once we have completed his walk he comes back in and he is calm and tired until around 9 when it's time for us to settle down for bed. My puppy starts biting/nipping doing everything he is not suppose to do chewing on furniture running and grabbing everything he can get his mouth on that does not belong to him. He has a lot of toys laying around for him to chew on. We start taking him back outside for a quick fetch/chase game in the yard to tire him out again and now he is worse. He is now so hyped up you can not even touch him everything then is a challenge and now he is clueless what the word NO means. At this point we start making him go back outside by himself and he sits at the door wanting back in. We wait 2 minutes and we try to let him in again sometimes this can go on for a hour of us making go back outside to calm down and making him wait at the door for up to 15 minutes. Once you have him in the correct state of mind he will come back in the house go get on his bed and he is out for the night. I do not want to make the outside a bad place for him but I am at a lost as to what else to try. I have read and tried everything I could find. The vet recommended the cage/crate we live in a small house and the cage is in the living room and he will not stay in there when he can see us. At times I feel like I have a toddler who is so tired but can not seem to fall asleep if that makes sense almost overstimulated. Help! Please only helpful tips we love this puppy and would never do anything that could be damaging to him. I feel we give him lots of attention and love and all we ask is not to nip. Bedtime is a nightmare at my house.