One drink a day has measurable health benefits; two, even more! Three begins to crash the party and four and beyond are definitely worse than none at all.
The above are the medical benefits; if three beers makes you feel crummy and say stupid shit, then I'd say it's too many.
I like to have two or three beers, spread out over the course of the whole evening. I don't like being drunk. Too many bad things have happened when I did. THAT sounds like a common theme!
Cannabis is my medicine, my muse and my saviour. I owe it my whole life, from pain management to the opportunity to help change the world for the better and leave something behind for future generations. 'Like alcohol?' Not exactly!