Zleem
A mythical beast whose spirit occasionally inhabits select people who've had too many drinks. Once Zleem has inhabited someone, the person's new goal for the foreseeable future is sabotaging absolutely everything they are capable of including themself. Zleem is irrational, deceitful and poly amorous. Zleem only knows one thing and that is destroying relationships.
Everything you knew about your friend over there went out the window 3 beers ago. Zleem has arrived. You can pick up your friend and what is left of their dignity at a bail bondsman in the morning.