They lose faith in God. The Bible reveals to us the truth about God. The Bible also teaches that God is more interested in our character than He is in our comfort. He will use adversity and suffering to shape our character into the image of Christ. Another idol of our making is the tyrant god.
Some people picture god as a big cosmic killjoy who just wants to destroy our fun.
Sits in the sky and just waits for someone to do something wrong so that he can zap them with some horrible punishment. The fatal flaw in this view of god is that it causes us to run away from god and hide from him. It also allows us to excuse our behavior because it doesn't matter what we do, sooner or later God is just going to zap us. The Bible teaches us the truth about God. God is a loving and forgiving God.