After some advice please. 2 year old springer spaniel, bit anxious. Problem is he growls and snaps at my dh. Usually he is loving etc to him, but sometimes- usually when being told to move/cone in or out of somewhere he can growl at him, has has snapped once too. Never done it to me or kids. Dh is probably stricter, maybe louder more aggressive tone? Hes working on being softer, not startling the dog. Any ideas/tips to help?