> Second, i'd assess the degree to which my child "is their own person" and understands that this person's advice is not to be listened to. 

She told me that she played along when her friend was explaining the plan, but that she had no intention of actually doing it which is why she told me. It’s still quite concerning, though, and now I’m on alert.

bief57

I am not sure what I would do.  I'd find a way to tell the other kids' parents what happened.  Second, i'd assess the degree to which my child "is their own person" and understands that this person's advice is not to be listened to.  Third, I'd try to limit the amount of time they have alone together.

Heavy handed prohibitions of spending time together, like at school, I don't think would work.

family

How do you deal with your children’s friends whom you don’t like?

I am not sure what I would do.  I'd find a way to tell the other kids' parents what happened.  Second, i'd assess the degree to which my child "is their own person" and understands that this person's advice is not to be listened to.  Third, I'd try to limit the amount of time they have alone together.

Heavy handed prohibitions of spending time together, like at school, I don't think would work.