Recently I found a significant mistake in my family tree. I had my gg-grandmother’s brother listed as her father. I realized the mistake when I found that she was three years older than he. I have also encountered an interesting problem when two men named John (both with the same surname but three generations apart) got linked inappropriately in a separate file in my database. It created a loop that went on ad infinitum. In both cases initial embarrassment and frustration gave way to laughter… but not as much laughter as the following video which suggests that genealogical relationships are not necessarily as simple as a relationship grid might suggest. As an example, I think I have finally come to understand the difference between a first cousin once removed and a second cousin… but this video compounds the issue greatly. Check it out!