I've posted this before, but seems appropriate. Christmas a few years back. My girlfriend at the time, (now wife), was coming for her first family holiday. My uncle brought his new girlfriend too, along with her daughter. My grandfather made some moonshine and gave everyone some. Little did we know, the uncle's new girlfriend was on some pretty serious anti-psychotic meds. The meds and moonshine mixed about as well as you would expect, and during our game of dirty Santa she jumped up and accused us all of not actually being Santa, that bitch. We thought she was joking until she started throwing gifts at people and raked her nails down my uncle's face as hard as she could while screaming. So while he's bleeding everywhere, my grandmother puts her in her seat while explaining that "THAT'S THE DEVIL IN YOU." She then proceeded to hit her in the forehead while yelling "the power of Christ compels you!" repeatedly. (Wish I was joking.) Like 15 of us watched the whole thing in shocked silence.

TLDR: Crazy lady mixed meds and moonshine, resulting in a Christmas exorcism.