[btreecat]

Depends on the thing they intend to do.

Is it chop down a tree that shouldn't be chopped down? I probably would need more people and equipment to effectively stop them because I'm probably not going to convince them with pretty words if they are already doing something that shouldn't be done.

Is it try to kill a member of my family? Yeah I'd probably try to intervene sans weapons in order to prevent the loss of life of another family member.

Context matters.