What should we do with this dog?

[Veronica]

The reason this dog doesn't know how to behave is because no one has shown him how to behave. He is acting like a DOG. You haven't even had him for 24 hours and already you are talking about putting him down. Seriously? He sounds like he has some energy, so he will need daily walks, I assume you were prepared for that going in? A tired dog is a good dog, so the saying goes.

Show him how to behave. Right now, he seems like a huge project, but break those things down into smaller goals in order of importance. I would assume potty training would be first on the agenda?
Even if you have a fenced yard, take him out on lead to potty and take a treat with you. While he is urinating, give it a cue word - like potty. Once he's done, give him a treat and praise him - go back in the house. Do this until he understands that he needs to urinate and poop outdoors. He may just go to the door on his own to let you know he needs to eliminate, if not, there are fixes for that, too - like Poochie Bells. Your roomate and boyfriend should also use this same method, so as not to confuse him. In the future, you will just be able to ask the word- potty? - and he will go to the door to go out. This won't take long if you follow these directions.

Figure out the next most important thing to train for. C'mon, there are three of you - don't let this dog down.