He is no-selling the product because he doesn't believe in it.

Many people have attempted self-surgeries, but it is highly dangerous and not recommended.

He attempted self-surgery to remove the bullet from his leg.

He is selling the pass to his friend.

The company self-polices its employees to ensure compliance with ethical standards.

The community self-policed their behavior to maintain order.

They are self-policing their behavior to maintain order.

It is important for individuals to self-police their actions and behaviors.

The room is self-ventilated, so it doesn't need air conditioning.

Participants self reported their symptoms on a daily basis.