Accusing people without evidence can lead to violence
In the first scene they started accusing people that one of their neighboors is the alien because he didn't check to see what the noise was. He started shouting at people and people got angrier and angrier. In the next scene they next acussed Tommy for being an alien because he would know what happeneds and he's the only one who guessed what happened. His mom got mad and Tommy starting panicing and freaking out. Then Tommy's mother started running but the chased after them. In the next scene it shows that people were arguign about who's the alien. They want to destory the car, lights, and the radio. Everyone was a angry mob at the end. The aliens explain this is how people destory themselves.