I'm not sure why this struck me so funny - maybe the last line of the postscript, where the owner responded to the vet's answer. If you don't subscribe to The Horse, you may be asked to sign up and login - but it's free.
http://www.thehorse.com/ViewArticle.aspx?ID=10693 Karen Karen Thomas Wingate, NC No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.22/1112 - Release Date: 11/5/2007 7:11 PM
