Our 12 year old Border Collie gets aggressive and tries to bite us when we attempt to put a lead on him. This is causing us a lot of problems. Any advice?

Hi,

I need a little advice, I have a 12 year old border collie, who is quite disobedient. He will not go on his lead, so this means he can't have a walk. If we try to put him on his lead he gets aggressive and will try to bite us, this is making us afraid of him and he knows it. This is causing us a great problem as we both work all day and so when we want to sleep at night the dog gets bored and barks and want to go out to the toilet. When he is out at night he barks and won't come in. He has bitten my husband in the past when he fixed his eyes on something that was on the floor and my husband went to pick the object up, the dog bit him and was quite frenzied. That was 5 years ago and since then I suppose we have shown fear. The dog has always been quite nervous ever since he was a pup he doesn't like coughing, laughing, or noise he goes and hides. We are thinking of having him put to sleep as he is dominating our lives, this obviously breaks our hearts. Any advice please.