Because this won't tip off anybody at all that there are nefarious plans afoot. Security pays no attention when appreciable numbers of employees are sprayed with a mysterious substance.
Of course they'll pay attention, this is just meant to solve the chem sniffer problem, not the people are paying attention problem.
EDIT: Besides, as I mentioned earlier, there are other detectors that are harder to bypass.
Last edited by The Random NPC; 2012-08-01 at 01:50 PM.
See when a tree falls in the forest, and there's no one there to hear it, you can bet we've bought the vinyl.
-Snow White