Emotionally unstable, but he's really just serious about his work. Personality flips from cheerful and bubbly to angry and intimidating, unpredictable, heavy drinker and habitual smoker...Gets so stressed he starts seeing double...Smokes with you or will buy you the nicest drinks he can afford...Has accidentally thrown merchandise at you, but feels really bad about it later...Apologizes with a bunch of horror movies and snacks...Playfights with you, and collapses on top of you so he can sleep...