I'm an adult living with my parents and sister. I've never drank alcohol and don't plan to.
My dad has always been very stubborn and closed off. It was always especially bad in the evening. He would yell, get mad about something (he'll always find something to be mad about, even if he had to make it up), slam stuff on the table, etc.
For most of my life I thought he was just very stressed about making dinner. However, a few years ago my mom told me he always drinks in the evening, and it all makes sense now.
During the day, he's fairly pleasant enough. Polite, usually calm. In the evening, he completely changes. Blames everyone else for everything, saying that mom just sits and watches TV all day (conveniently ignoring the fact my mom works a 9-5 all week, and dad isn't working at all ATM). He blames us for him being miserable, gets mad when we help make dinner because we did it "wrong" but also gets mad when we DONT help, because "we never do anything".
Talking to him like this is like talking to a brick wall. And then the next morning, he's back to normal, and we just act like the previous night didn't happen.
My mom once showed my records of purchases he was making, and almost EVERY day was at least one purchase from LCBO, the Wine Shop, or the Beer Store. He knows we don't want him to; he doesn't drink in front of us, but my mom says she smells the alcohol on his breath.
Tonight was the worst it's ever been. He's normally a very passive aggressive drunk, but tonight he angrily claimed "I'm gonna kill that fucking idiot" in reference to me. He's never hurt me before, and I'm pretty big so I could probably defend myself if it came to that, but still...
I don't know why I'm writing this. I guess I just needed to vent.
Sorry if this isn't the best subreddit for this.