His BAC was only 0.12%. He must have been in a bad mood earlier.
Or he could have supposedly Asian or Amerindian genes and has a lower threshold for drunkeness (apparently Jews also have a low threshold, but they are genetically diverse since their diaspora).
"His BAC was only 0.12%. He must have been in a bad mood earlier."
In alcoholism as it progresses, one drink changes the personality often as drastically as Jekyll/Hyde. I've also never known an alcoholic who didn't say absurd, nasty anti-semitic things.