I have a big problem with this, to be honest.

It's really most aptly summed up like the others mentioned as all or nothing.

If I don't get 100% on this paper, I failed it.

If I don't get a 5 (out of a 5 point evaluation scale) I'm a horrible employee.

If I'm not 15 minutes early, I'm late.

If I'm not thin, I'm fat.

Does that help clear it up a little?