A few years back there was a call of an armed subject in a local fast food restaurant in a neighboring city.
When the police arrived they found a fellow officer who was off duty and, after seeing no armed subject, asked him if where the armed subject was.
This was news to him and as they stood there in confusion a description of the armed subject, matching that of the off duty officer, came over the radio.
Turns out the off duty officer was the armed subject.
Seems he was standing in line waiting to order his meal, wearing swim trunks and a t-shirt, when another customer noticed his drawers were sagging under the weight of his pistol stuffed rear of his elastic waistband.
Not wanting to leave it in his vehicle while he went inside, he had stuffed it there when he arrived.
The line cleared from behind him quickly but, used to seeing him there on duty, the staff was not alarmed at all (I guess until all the other officers started pouring in).
Guess he knows now why the line cleared out so quickly now.