Neil, DS cannot be two places at once :evil:
I carried two canisters in my haversack; one, fitted to the resi "just in case", was the regular can. The other was the summer weight job, stowed properly, and would be swapped over the moment DS were out of sight. Worked every time
Both cans were red-tape marked, and of the METAL type, not the plastic crap that came later. Plastic ones were nigh-on impossible to summerweight, of course. Probably why they introduced them (some former DS on the company payroll, no doubt, the sneaky blighter):argh:
To those who don't know, exercise use only resi cans were meant to be marked with red tape around the casing, to show that they were merely for defence against CS and smoke, and were not under any circumstances, to be used to defend against actual NBC situations.
The idea was that Company/Squadron/whatever stores would hold sufficient stock to supply each squaddie/sqaddess with two thick polythene-wrapped and sealed "in-date" (resi cans have a shelf life) "warshot" cans, and once in the fight, would be resupplied with cans as required through the supply chain.
Well.... that was the idea, anyhow... thankfully it never came to the test