[collint]

Because it's not like marbles. It's not a math thing.

It's more like a canary in the coal mine. If the canary dies, you should check on the air quality. If they went through the trouble of removing the brown m&ms you have a fairly strong indicator they actually read the document in the first place. And a strong indicator they have a good attention to detail.

[masklinn]

Exactly, a concept also known as a "litmus test", if you pass the test you may still fail the actual, but if you fail the litmus test there's more or less no way you'll pass.

[bcohen5055]

I'm all about data being presented with confidence bounds but if even 1 canary is dead I'm getting the hell out of there!