I notice that you don't mention smoke breaks, Matt ...
Meanwhile, I doubt that any NHS hospitals have biomeds on site 24x7 ... my own experiences recall situations in some other parts of the world ... where (despite having a guy already in the building) I was often (too often, in fact) called in during the night every time something deemed "serious" was going on. One of the joys of living on site, no doubt.
But seeing that you have now mentioned "on call" (another can of worms), how about the "duty technician" palaver* ... yet another potential cause of friction within the "team".
"Blitzing the vaporizers" is a good example of what I was driving at, by the way.
* A word but rarely seen on this forum.
