Who will shave the barber?

"Now, that is a nice hair cut, thank you.", and then he shot the barber.

"Do you know Junior, do you know why I always shoot the barber?"

"I don't know Colonel, but maybe you don't want to pay his tab?"

"O you came from the shite, will remain so even in jazzy military uniform. Because, you can never ever monitor a barber. You keep someone all the day with him, still you won't know if he is whispering stuff while shaving the hair on the neck."

"Okies so we shoot the barber!"

"No that is not what I mean. You keep a tab on the people who come here often and keep a tab on them too. The town's barber with the NO POLITICS HERE! board is the first bastard we should take a look at."

"Well this guy didn't have one."

"He is - was the last remaining barber."

"But we already took over the town."

"Exactly my point."