Idiots! Although I don't blame them for not doing anything.
When an operation went wrong years ago they used that signed form to get out of accepting any responsibility for their complete incompetence during the operation!
This time, for the same operation not only did I have to sign the form but they sent a very long letter prior to the operation spelling out all the possible complications and that it was entirely my decision to go through with it despite knowing it could result in death. It was very much a letter written by the legal department rather than the gynaecologist.
You shouldn't have had to go back to the back of the queue though as it was the hospital fault.