The soldier asked for a furlough so that he might get married. "How long have you known this girl," the sergeant asked.

"A week."

"Why, my lad, that's not long enough. I suggest you wait a couple of months, and then, if you still want to get married I will approve the furlough."

Two months later the soldier was back, reminding the sergeant of his promise.

"So you still want to get married? I didn't think that a young man would stay interested in the same girl for a couple of months."

"I know, sir. But this isn't the same girl."