Lost my lovely lab bitch last month and really want another dog. We are undecided dog or bitch? DH wants another bitch but I don't want a "replacement" so though a dog might be good. Also we're going to get a working type lab but I don't want a tiny dog and some of the lab bitches seem to be so small ( like 20kg) but DH thinks dogs are more likely to be hassle with other dogs and not as trainable. Any thoughts?