I hope this doesn't come across as me calling your coworker or his nephew and son a liar, but I'm suspicious about these claims that x number of people got together and answered this questionnaire the same way.
A.) Beforehand, who would've thought that the questionnaire would eliminate so many people. Therefore, how many people would have thought to get together and answer the questionnaire exactly the same way to have an argument afterward. Did people get together to complete the questionnaire simultaneously, and maybe even discuss or agree on certain answers to some questions? Most likely yes. Did people get together and answer every question exactly the same way? I am highly skeptical of that.
B.) The questionnaire contained something like 60 questions with five possible responses each, right? Using this example, that means there are 5^60 possible ways to answer the questionnaire (sometimes it helps to see the raw number: 867,361,737,988,404,000,000,000,000,000,000,000,000,000). The random likelihood that just two people would answer the questionnaire exactly the same is astronomical. That several people (I think one post on here mentioned four) would answer the questionnaire the same, fugget about it. If exactly the same answers to the questionnaire were turned in, I'm sure the computer's WTF alarm would go off. What happens then, I don't know.
While I remain skeptical, I apologize in advance if I am wrong and some applicants did turn in the exact same questionnaire.