[From Pompi] 

Making sense isn't always good. I was debugging some code and printed some number on the screen. The number had weird initialized values, so I rationalized why these values are not 0 at the beginning.
Bottom line, I just forgot to initialize the debug variable so I had garbage values.

I think it's a common trait of humans to try rationalize everything. Sometimes they are so convinced at something and the logic behind it, even though it has no basis or it is even something that can't make sense.

Does it happen to you too?