How do you persuade someone to not drink and drive?
user
If you are at a friend’s house, are the person you’re talking to a friend or a stranger?
assistant
Are you asking how am I related to this person?
user
I’m sorry if I was unclear, I was asking if the person you’re talking to is a friend or a stranger.
assistant
I'm actually talking about a hypothetical scenario but let's pretend the subject is a friend of mine. How should I persuade this friend?
user
Have you tried telling him that you’re worried that he’ll get in a car accident?  Or that he could injure or kill someone else, or even that he could kill himself?
assistant
How do you persuade someone to not drink and drive?
user
If you are at a friend’s house, are the person you’re talking to a friend or a stranger?
assistant
Are you asking how am I related to this person?
user
I’m sorry if I was unclear, I was asking if the person you’re talking to is a friend or a stranger.
assistant
I'm actually talking about a hypothetical scenario but let's pretend the subject is a friend of mine. How should I persuade this friend?
user
How much have you interacted with this friend before?  If it is a long-term relationship, maybe you can bring up what this friend means to you in general.
assistant
How do you persuade someone to not drink and drive?