A VP at Ketchum will be thinking twice about what he posts on Twitter from now on, and sends a valuable reminder to all PR pros to do the same: think before you post!

From Peter Shankman's blog: James Andrews, the VP in question, posted on Twitter just before a meeting with the worldwide communications group at FedEx. Says Shankman, "Not only did an employee find it, they were totally offended by it and responded to the agency person. The kicker is that they copied the FedEx Coporate Vice President, Vice President, Directors and all management of FedEx's communication department AND the chain of command at Ketchum. Mr. Andrews, the Ketchum presenter, did not take into account that many FedExers are native Memphians and are feircely defensive of their city and their company."

In response, FedEx sent the following remarks to Andrews:

Considering that we just entered the second year of a U.S. recession, and we are experiencing significant business loss due to the global economic downturn, many of my peers and I question the expense of paying Ketchum to produce the video open for today's event; work that could have been achieved by internal, award-winning professionals with decades of experience in television production.

Additionally Mr. Andrews, with all due respect, to continue the context of your post; true confession: many of my peers and I don't see much relevance between your presentation this morning and the work we do in Employee Communications.

Click here for the full letter. Image via Gawker.