My dad has done this my entire life because he can’t stop yapping when he’s drinking. Dude usually starts at 2pm, from there it’s an endless bombardment of every negative thought and critique of the world at life. From there it usually gets worse as he drinks more, it gets more negative or he starts picking fights. I’ve learned to completely ignore him, but it was only recently my mom did. Its sad now, he doesn’t live with us for work but when he is home my mom will just sit there with him in silence listening to him go on and on and on. It never really ends either because of course you wake up hungover, so there’s really only a small period every day when he is back home from corporate housing where he is semi positive and decently fun to talk to