TV Quote from The Office (US) 03x07: Branch Closing
Jim: I don't have a lot of contact with the Scranton branch, but before I left I took a box of Dwight's stationary. So from time to time, I send Dwight faxes... from himself... from the future.
Dwight: [reading fax] "Dwight, at 8:00 AM today someone poisons the coffee. Do not drink the coffee. More instructions to follow. Cordially, future Dwight." [seeing Stanley with coffee] NOOOOOOO! [knocks coffee out of Stanley's hand] You'll thank me later.