A sufficiently desperate amalgamated waffle sorter

My accounting teacher has been talking for some weeks about the "fifty-five minute test" to come today. I managed to finish said test in under twenty-five minutes. None of that time was spent wondering "what do I do now?", and very little was spent on "did I do that right?". I didn't skip any questions or parts of questions.

I mean, I know I don't tend to get interrupted by the expiration of the time limit, but I don't think I've ever finished in the first half of the period, either.