We have an opportunity to buy a one year old Springer, who has been trained by the local airline to be a sniffer dog and failed miserably. We currently have a 6 month old mongrel bitch and need/like to have another dog. We have loads of space outdoor, people at home all the time but 3 small dc 6,4,1. Please talk to me about their temperaments and suitability as a family pet.