I had the pleasure of being screamed at and threatened by a strung out meth-head at work yesterday.
He came in about 10 minutes to close visibly shaking and babbling in a paranoid manner; muttering to himself about how our pharmacy ripped everyone off, and he needed a Sudafed product for his ears and whatever else.
Unfortunately when I scanned his ID for the purchase (products containing pseudoephedrine are restricted where I live) he was flagged as having already reached the purchase maximum so the transaction could not go through.
As soon as I told him this, I had to interrupt his rambling first though, he went totally nuts screaming and cursing about how he wasn't some junkie, and he had stuffy ears and we *NEEDED* to override the registers or just give it to him anyway. He was making such a scene that other customers in line were backing away in fear, and I was literally shaking (I'm a usually-petite person and about 8 months pregnant at the moment, so not even slightly prepared to deal with a scary junkie getting physical).
Our pharmacist who's all of 5' tall and talks in this adorable squeaky little-girl's voice came over to attempt to diffuse the situation. She tried to tell him exactly the same things I had and explain that the only way he could get around the pseudoephedrine restrictions for over the counter items would be to get a prescription from his doctor for a higher dose.
He's having none of it, cutting her off, screaming, and attempting to be physically imposing so she threatens to call security which immediately shuts him down, and he leaves with a, "You don't gotta call nobody, I'm leaving."
Thinking we've seen the last of him we finish up our closing duties, turn the lights out, and start to close the gates. I look over and there he is standing by the final partially-open gate that we leave through holding a cellphone and demanding that we stay open because he's "on hold with his doctor for a prescription." Doubtful considering the time of the evening and the fact that it's a Sunday, and most offices are closed.
We're willing to humor him even though everything's already shut down, so we wait a few minutes. After 10 minutes of him being on hold, the pharmacist apologizes and informs him that we can't wait anymore, we're going home, which makes him freak out even more.
The pharmacist told me and the other girl there to just go, that she'd handle it so we left and got security immediately because we weren't about to just leave her alone with scary Sudafed guy. They got him to leave, and everything was fine, but I was still partly shaking from it until I was about halfway home. Scary fucking crazies...