Once upon a time, five beautiful ladies gained admission into the same university. They did not know each other prior to entering the university. But they took interest in one another and within a short time became good friends, eating and reading together. For four years. They maintained this relationship and graduated together. 
(image source) [https://www.shutterstock.com/search/five+ladies+young]
However, during their national youth service,they were posted to different states, though all in the western part of Nigeria, this gave them opportunity of visiting each other.
One day, towards the end of their service, one of them saw an advertisement in a national daily, calling for application from job seekers.
Luckily, the job was in line with their discipline, Thus, the one who saw the advertisement decided to inform the rest, coincidentally, all of them took interest in the job and filed their applications.
Few weeks later, they all received their letters for interview. They prepared for it. A day to the interview, four of them travelled to Lagos to spend the night with the one living in Lagos since the interview was to be held in Lagos.
On the part of the interviewers, they had set the stage and where ready for the candidates. 
(image source) [https://www.h1btech.com/uscis-to-interview-h-1b-visa-holders-for-issuing-permanent-residency/]However, the advertiser had made up their mind that patience was the most crucial prerequisite for any lady who would eventually be employed. They needed five ladies and the job entails been patient.
Thus they tailored the interview to test patience and their strategy was that the interview was to be deliberately post pone thrice, to see if any of the candidates will withdraw voluntarily out of impatience and frustration.
By 9:00 on the appointed day, all the candidate came, numbering about 20 including the five friends. They needed to wait until 10:00am but the interviewers did not show up until 4:00pm which made four of the candidates get annoyed and left in anger leaving the other sixteen.
However at exactly 5:00 the interviewers arrived and apologize for their lateness. The interview was rescheduled, on the reschedule day only ten candidate came including the five friends. The same thing happened except that the panel came by 12 noon instead of 9:00 am when three candidates had gone after cursing the panel leaving only seven, including the five friends. All of them left, all in annoyance that owing of unforeseen circumstances we will not be able to interview you now, kindly come back by 4pm instead, instead of getting angry, the five friends laughed themselves wild, vowing to see the end.
They all went home, cooked, ate and crack jokes, and by four they returned to the company premises, venue of the interview. This time the panel was already sited waiting for the candidates. At exactly 4pm, the candidates (only the five friends) saw themselves sitting face to face with the panel.
However, what they expected was not what they saw. In stead of the usual questions and answers session, the panel only took their credentials, scrutinized them and served them drinks.
At the end, the panel revealed their gone plan to the candidates, to their amazement why they had undergone the interview without knowing it by being patient in the mist of dribbling. They were all congratulated and given appointment letters to begin work the following week, they went home with joy. One of the friends narrated the story to me, now I really agree that the patient dog eat the fatest bone