10 Jun 2012
Dear [Insert name]
Unfortunately, I will not be able to attend this meeting.
As someone who is paid to create value for this organization, I feel it is my ethical obligation to decline participating in meetings that have neither (a) a stated purpose, nor (b) a clear agenda, as it is well documented and agreed upon by most leadership teams that the absence of this intentional thinking costs companies upwards of billions of dollars every year [insert link to most recent source]. If you wish for me to attend, please send a second invitation with this information clearly stated so I can accurately estimate the value of my attendance.