"It's frustrating as a teacher to, on the one hand, see a student who is perfectly capable of doing good work, but just blows off so much work that their final grade plummets; or on the other hand, see a student who probably would be able to do it if they sat down and worked on the homework, ever, but don't, and therefore do very poorly on the few things they do attempt."
Worst. Sentence. Ever. But I forgive you since you were sleep deprived.