(see - we've even got a name for such errors, so you wouldn't be the first).
The devil has a way of throwing a bug into the works. More usually for me that bug is of an Excel nature - the beast that it is.
If the Stewie plaque were made of gold then the number I would have won by now at present gold prices would have been enough to buy me one of them-there boats.
Nowadays I'm much more sceptical and when my (or others) test results look exceptionally good I instinctively consider them to be too-good-to-be-true.
Here's hoping you prove that instinct to be wrong.