Me: I’ve got one in-class final, one final project, and a take-home final exam that I’m working on right now.
Professor: I’ve always wondered how you know to stop on a take-home exam.
Me: Usually, you quit when you feel confident in the answer you have for every problem. Or when you feel like you’ll throw up if you look at the problem one more time.

Thankfully, the professor I was talking to cracked up at this point in the conversation.

I have answers for every part of the take-home final. Not necessarily confident in all of them, but it’s time to let that be for a few days.