Do you think that chain could be used as a weapon? DC asked and I don't see your answer. I would be curious myself .
I don't see how it could, myself.
Keys could be attached to one end and the chain swung to strike another student, so it could be a weapon, just like a pencil could be or rock or a stick.
But that is not the point. Read my posts on this thread, particularly 277. Hopefully that will clear this up.