Tony
I do not honestly think that changing the colour of the Tube release will alter peoples perspextive on it. I believe it is a combination of poor design and insuffient clinical training.
Admittedly I had a little problem getting to gripps with it when I first encountered this release button.
Resetting it seemed to prove more cumbersome than I had first anticipated.
Some sort of mechanical lock (e.g a barrel and key) I think would be a good start.
Something similar in principal to the Graseby Omnifuse !
If it aint broke.....fix it !
