Blast, thanks for posting this.
This drives home the always have a knife mentality. I have to admit that I woudl have voilated that rule, or flat out not taken the job.
I once did have a job where there was a strict "no knife" policy, and I am sorry (well actualy not that sorry) to say that I "stashed" a knife for only true emergencies.
Luckly where I work a SAK in the pocket is not frowned upon and may psk comes to work with me every day.