Is it tech?........................
Seems like you are dumping them all over the shop, there is one parked on DHL's Apron at EGNX if my eyes are not decieving me as I gaze out of the office window..
I remember a 10 sqn (pilot I believe) many moons ago coming up with the bright Idea of adding "pink" dye to the deice fluid so you could see if it had an even coating............. Needless to say is was not looked into
I seem to remember in the mid 70's after years of shovelling at Odius they finally bought a sicard and on it's first outing in earnest with the heavy snow they drove it over one of the rolls of barbed wire alongside the taxiway which it did it's best to digest and that was that so to speak.... lol
Mk1 shovel was redeployed