TACEVAL, EGXW, "NBC White" on Tannoy but, of course, sniff tests had to be carried out.
As a caring person, I allowed certain pets to be allowed at work during exercises ... those owned by off-base singles who would otherwise have to be abandoned to their fate for several days.
I thus tasked a WRAF Cpl to perform the sniff test using her caged gerbil.
The TACEVAL Umpire present laughed loudly, and admitted that was a new one on him, as we happy unmasked.