I do think this is true, but if you include those times you'd also have to include the nights where it ruined friendships (or a host of other negative consequen

I do think this is true, but if you include those times you'd also have to include the nights where it ruined friendships (or a host of other negative consequences). It would be an impossible study to execute, but I do wonder on-balance across long time periods and large populations what the overall net affect of alchohol is on mental health.