While trying to have a closer look at an unusual USAF Herc in CHC a while back, I was in RAAF flying kit on a military ramp, I was 'politely moved on' like this.
Sound from adjacent hangar,
"click click"
and a big voice said,
"I wouldn't go there if I were you sir!"
About faced and quick marched off with a distinct feeling of X hairs on my back. Those guys take it seriously.
Regards,
BH.