The stupid couple in the restaurant and the restaurant manager
First things first; this movie had the dumbest characters across the board from any film from any genre I've ever seen. In fact, his film is so horrible it's almost brilliant. The part that was most painful to watch was the scene in the restaurant after her illness cannot be confused with anything but a contagion. The manager asks her to come in spite of the fact she tells him she's sick. This might be understandable if it was a greasy spoon, but the establishment as it was portrayed in the film was upscale.
As if that wasn't enough, once she shows up she starts preparing a salad with no gloves, bloody fingernails, and her hair falling out. Once the manager shows up, he doesn't react with the horror that one would upon seeing her. He dismisses her bloody eyes and cadaverous appearance as pink eye. In fact, no one in the entire film reacts the way a normal person would when confronted with someone who looks like a rotting, talking corpse.
She serves drinks and the salads to two patrons played by the worst actors in the world (which isn't saying much because pretty much all the acting in this movie stinks). Rather than being mortified that they're being waited on by someone with rotting flesh who has handled their food, they shake their heads in annoyance and eat anyway. Moments later, the female patron screams upon finding a fingernail in her food.
However, the scene that follows is the manager trying to calm them down and the woman no longer seems panicked, but annoyed, and her husband just shakes his head as if he just stepped in dog crap. The level of bad characterization and writing in this film reaches new heights in unbelievability. Basically, it was an interesting idea executed very poorly.
You're such a mess, the train wreck stops to watch you!