Tell me an English translation of a joke

Miles sometimes goes to the barber shop for a haircut during work hours. But this violates the office rules: staff must have their hair cut in their own time. One day, when Miles was in the barber shop, the office manager happened to come in for a haircut and sat next to him.

Miles sometimes goes to the barber shop to get a haircut during office hours, but this violates the office rules: employees can only get a haircut on their own time. One day, while Miles was getting a haircut, the manager happened to come in for a haircut and sat next to him.

"Hello, Miles," said the manager. "I saw you get your hair cut during office hours."

"Hello, Miles," said the manager. "I saw you get a haircut at work."

"Yes, sir, I am," Myers admitted quietly. "You see, sir, it's long at work."

"Yes, Sir. Exactly. " Miles calmly admitted it. "But, sir, you see, hair is long at work."

"Not really," said the manager at once. "Some grow up in your own time."

"Not really," said the manager at once. "Some of them grew up in your time."

"Yes, sir, that's quite right." Miles replied politely, "but I won't cut all my hair off."

"Yes, sir, you are quite right." Miles replied politely, "But I didn't cut off all my hair."