I'd like to think that rather than mere homicide, it would be some sort of eldritch implosion that sucked all the victims into some uncaffeinated nether realm.
oh my god, as someone who's been putting myself through nicotine withdrawal to quit smoking this is insane. I locked myself in my flat for 3 days just so I could get through the worst of it without blowing up on some innocent person. I cannot imagine being at work during that time, even if pretending to be someone i'm not was my life long career the irritation would get very real very fast