Yes

And the Captain could have killed the barber at any time. Right?

Nope, once he was done his shave he left

The Captain could have killed the barber any time he was in the barbershop.

But the Captain, while he was in the shop, DID NOT kill the barber who was an enemy. Why not?

Nope, once that barber was done shaving, the captain said "they told me that you'd kill me. I came to find out. But killing isn't easy. You can take my word for it". Then the captain left the shop once he is done saying this

You're overthinking it again and going too fast. Answer my question just before this screen.

Captain was there to find out if the barber would killed him

Not true. Why did the captain come into the barber shop?

Captain came to the barber shop to see if the barber would sliced his throat. Because the captain would kill rebel people. The barber is a rebel and he knows that the captain kills rebel people. This was a chance for the barber to kill him (to get revenge) of what the soilder have done to his people. However the barber thought about his future. He the barber had killed him, he had to give up everything and move to a different city. But he does not want do this. So the barber did not sliced his throat.

No. You are thinking too hard. Why did the captain come into the barber shop?

here is the summary from

Just Lather, That s All- Summary - Research Paper - Ramankaur05

The short story Just Lather, That's All, written by Hernando Tellez, is set in a barbershop in a small Colombian town. Captain Torres walks in the barbershop for a shave. The barber began to tremble when he recognized Captain Torres, and secretly Captain Torres is his enemy. The barber doesn't like Captain because he was against the rebels and he also killed many rebels with pleasure. The barber hates him because of what he did with the rebels since the barber is a rebel himself. The barber struggles with his inner conflict. He is really confused and scared about what he should do and what not. He also thinks about the consequences he will get if he kills the Captain or whether he will. Become a town hero. As he is shaving the Captain he struggles within himself to decide whether to kill Captain Torres or not. The barber is frustrated with his hatred for the Captain and his values for human life. After all that thought he decides not to kill Caption Torres. He believes he is a professional barber and is here to give him a shave. Once Captain Torres is done shaving he tells the barber “They told me that you'd kill me. I came to find out. But killing isn't easy. You can take my word for it.” This quote clearly explains that even the Captain finds killing people a hard task and that not all rebels are enemies. The main message of the story is that everyone has their own place in the scheme of things.

Please answer my question.

Why did the captain come into the barber shop? Three words will do it.

Captain came to see if the barber would kill him. The barber enemy is the captain

Again I ask, Why did the captain come into the barber shop?

To see if the barber would kill him.

He was testing him if the barber would kill him.

Oh, come on. What happens during most of the story? Why is the captain there in the barber shop?

The captain came to get his beard shaved.

Yes, thank you (finally!! ). The captain came in to get his beard shaved.