Guy I work with in the barber shop keeps a Flock 40 sub compact tucked.
Your co-worker is wise. In 1996 Frank Kelly, an 'old school' barber and customer Leon Poole were murdered in a downtown Columbia (SC) barbershop at SIX THIRTY IN THE MORNING by Felix Cheeseboro who had also just murdered a cab driver. Despite the fact that the Columbia Police Department bungled the case by accidentally melting down the murder weapon the state got a conviction and Cheeseboro is serving a life sentence.