It's actually a problem my sister has asked my advice on. Yesterday she called the doctor I arrange to have someone trim the threads of her coil as her DH had we stubbed his toe, so to speak. The receptionist advised her she didn't need to see a doctor or nurse for that and that she could do it herself. When she enquired how, thinking perhaps there must be some device she was unaware of, the receptionist replied 'well with some scissors of course'. ISBU to think she should complain about this blatantly dangerous advice?