Questions (Spoilers)
I realize this is beside the point, but...
1. Why did that guy at the beginning put detergent in his mouth??
2. Who was that guy at the end who (almost) exploded in the police station?
1: I think he was hallucinating and thought it was probably a good idea, that or he knew what he was doing and believed it may hold off the drug from killing him for a few more minutes while he tried to warn the residents about the drugs they'd be given.
2: He was the husband of the pregant woman.