The house will not be full of shit and piss. It's called house training, it takes time and patience, not alot to ask is it. If your working all day then a new young puppy really isn't the best thing to get imo. You need to spend alot of time with it in the first few weeks to bond with it, train it, feed it properly, play with it, a puppy that grows up with little human contact quite frankly grows up characterless and/or mental, just think what a human baby would grow up like if it was alone for most of it's childhood, it would become a social reject tbh. Not having a dig, just giving my opinio