This is why I should have gone for an M.A. in Literature instead

Why is it that whenever I have plans right after work, actual written-on-my-calendar plans, I get slammed at 4:30 with a six hour project that's due tomorrow? Why? Why is that? Why? Every single time. Even the cleaning people are looking at me with a "wtf are you still doing here?" stare. I think they're afraid to turn on their radio and now they're resentful for me preemptively ruining their workday. Great, now I have resentful cleaning people who won't vacuum my carpet. Wait, the building is about to turn off the HVAC and it's about to get 90 degrees in here. Wait for it....