What's the best way to give advice to someone you don't know about the she's guy she's dating?

I know this guy and he's not to be trusted.What's the best way to give advice to someone you don't know about the she's guy she's dating?
Taking it that this is not jealousy or revenge.....





As I see it you have a great responsibility regarding this issue.





My idea is that you try to make a friendship with this person and show facts for what you'll be telling.





You'll be so happy if you can help people to get away from leechy persons.





If your advice is not taken, just the same you'd have done your part...that's what I'm trying to do.





Good luck.What's the best way to give advice to someone you don't know about the she's guy she's dating?
Can you elaborate more? Is this an ex of yours who is now with another girl? Be careful, because women can get very territorial and might view your intentions as trying to sabotage her current relationship. Now if a guy/gal is not to be trusted in a way that could cause danger to this other person, by all means it is worth the risk to kindly pull them aside and express your concerns.
Just tell her what you know. She may or may not believe you. But if you care enough to worry about some chick you don't know, then just approach her and tell her whats up! Trust me she will appreciate it! Also you must explain your reason for telling her, otherwise she may think there are some ill feelings towards the other party, or jealousy and wont take you seriously.
Uh鈥?Uh鈥?I subscribed to a magazine called Famous Monsters of Film Land. The publisher was guy named Forrest J. Ackerman, who passed away recently.
if you don't know her how do you know what they actually want from this guy. stop being a player hater.
Normally, I'd say mind your own business but if you really know the guy and he's bad news - pass it on.
depends on how serious it is. she'll prob get pissed and tell you to screw off. girls are territorial.