Answer: This public service announcement is trying to persuade people to wear seat belts.
Explanation: In this public service announcement, <u>a seat belt is conceived as a good friend since it is capable of protecting people</u>. Therefore, the announcement is highlighting a positive aspect of wearing seat belts. The last sentence (and more specifically the clause "they are supposed to wear seat belts") is the one that mainly shows the main purpose of this announcement: persuading people to wear seat belts.
There are many kinds (can't name them all off the top of my head)
1. Telling someone you'll keep it a secret and then tell anyway...
2. Always being there for someone and then not
3. When you cheat on your husband/wife or someone you're in a relationship with
4. Using someone just to get some
Those are all I can think of (at the moment). But you can just pick whichever one you want.
