To quote "designer stubble" and a "5 o clock shadow" were not allowed and what this is will be judged by someone with the rank of sergeant and above, that's what we were told during training for a volunteer role.
Yes but the the sergeant joked that if you get injured in the job and you are put out of work for a while then that's your chance.
I actually found a link just to prove I am not making this up, this applies for the UK forces.
Anyway, not wanting to derail the topic, the reason I bought this up because it's probably the same line of thinking the OP had with the sandwich maker, the sigh itself isn't bad but it indicates that there may be larger issues such as a lazy attitude.