I set an Outlook event for 4-5 (16:00-17:00) on Friday (“Errands”) and someone had the audacity to schedule a meeting from 5 to 5:30. Bro, did you think I was coming back to work?? (TikTok screencap)
Pff. Unless I know you or you're in my area, anything after 12 on a Friday doesn't get actioned until Tuesday due to the "Friday backlog". A concept entirely made up while I action all the stuff coming in on Monday.
Am I manipulating my entire organisation? Sure. Has it worked over time? Certainly. The more you treat a team or department like a last minute dumping ground, well you can expect the expected results.
Edit: Oh and marking the email priority as "Important" lets us know it's definitely not. No one leaves important shit to Friday afternoon. Go to the back of the queue.