A Librarian's Guide to Etiquette: Reminders, Giving your coworkers friendly

From A Librarian's Guide to Etiquette: Reminders, Giving your coworkers friendly:

Help your coworkers do their jobs by reminding them to check their email, check their voicemail, or to check their mailbox after sending them something you deem important.

If you work with people who really DO need to be reminded of these everyday things, you should also remind them to breathe (so they don't suffocate), eat (so they don't starve), and blink (so their eyes don't get too dry).