Your husband is clearly seen and respected as 'top dog' by your CS - you and the rest of the family are there but not of consequence, your daughter is considered inferior and lower in the pecking order. The little JR is no threat, knows his place and is therefore left alone (and I may add, the JR is perfectly happy with this state of affairs.) C. Spans are working dogs and have an enormous, enormous amount of energy, nervous and physical - if they aren't sufficiently exercised they have more nervous energy. Not just Cockers, lots of working dogs are the same. As a matter of interest, is the dog entire and what colour is he?