Hold on, how does it "harm" someone to restrain them from sabotaging a project? If a school principal requires a student to remove graffiti which says "Aron 151" from other students' lockers in the hallway, does this harm the student? I think it teaches them a valuable lesson in responsibility and in respecting the rights of others.
Enforcing a "do not harm others" rule is not inherently harmful.
Ed Poor