76fan - sadly a typical attitude to winching - just cuff it
As it happens we did a thorough recce of the roof area, liaised with the Hazardous Rescue Team (HART) on scene, established the compatibility of kit between us and the medical services to ensure the comfort and safety of the casualty, briefed the HART guys on using a hi-line to stabilise the stretcher and performed the rescue as safely and expeditiously as possible.
It's called being professional which is probably why we were asked to do the job instead of letting a scratch crew who have only ever winched over the water without live people on the wire pitch up and make a mess of it.