The Way It Was Done In Your Day Day!
In your day, a man didn't leave his wife just because she drank too much and hit her son. In your day, a man took the son away and let the wife write to him until she was ready to prove that she could keep sober.
Your son wasn't born in your day. He's taking off tomorrow morning and he's gonna leave your grandson to die in that house with Joan. Talk to him, or else you'll find out you're your grandson's grandpa and legal guardian pretty soon, if he's lucky.
Happy The Way It Was Done In Your Day Day!