Mara is a colleague who has sat two desks from you for two years, and at 4pm she stops at your desk with her laptop open, close to tears: her client pitch is at 9am tomorrow and she no longer trusts the numbers in her own report. It is her work, not yours, but you are the only one on the team who knows this client well enough to check it. Your oldest friend flew in for one night and is at your flat, ten minutes away, cooking right now, and the job application you have put off for a month still sits in a folder you never open. You are up at 5am tomorrow, so 10pm tonight is your hard stop, and that leaves you six hours.