On another quick note:

you can tell what's been on your mind when you dream that you're stuck in a sleepy tutorial, really not paying attention, then your lit teacher calls you up to give an answer for a question and it's a (d) question and you know, man that's the hardest! But it's not lit, its econs - an econs DRQ at that and you haven't read the bloody thing and your seat partner just went to the toilet so no one is giving you a clue to what's going on and then, the lit teacher says, "So, what is an ester?"

And then you think, "Ester? Is that spelt as 'esther' - wait, do I know someone by that name.." trailing off in befuddlement because even your dream-self hasn't realized that maybe, the reason why you're so confused is because you're being asked about a chemistry concept, in an econs tutorial, by your lit teacher.