I can only figure that was for binding - think of how the nurse straps your arm before drawing blood - in lieu of duct tape.
Anybody else have a theory on the her intentions with the tubing?
Well if some one tied a two foot piece of tubing around your neck, you might have a little problem with breathing. Same with a plastic bag over the head.
If the diapers didn't work.
I don't know about the tubing. Strangulation? Diapers can be used to sop up urine, but they can easily sop up blood, too. I wonder if dismemberment wasn't part of the plan. Is there a detective in the house?