Oh and one thing that is sure to wind me up,
Don't put the content of your message in a 100k word doc with some fancy 'memo' formatting that says all of about 2 lines of useful information then have your PA email that as an attachment to everyone in the company with an email subject of "Message From Mr Weaselworth"
If you do this I will hunt you down and make you pay dearly,
PS (true story, name changed to protect the incompetent)