Sheldon, just keep playing this until he gives you the day off :-)
http://www.youtube.com/watch?v=l5zFsy9VIdM

: Dear Boss

: I need to take a personal day this Friday. I am afflicted with
: nerves twitching lack of concentration and an overwhelming
: desire to study a web site called WETSANDS.COM.

: Fortunately there is a cure for this affliction. It is being given
: this coming Friday at a place called NAPATREE. I am sure after
: taking the cure my ability to perform at work will improve many
: fold.

: Your loyal employee
: Sheldon