Expedia had a similar problem (http://www.silicon.com/management/sales-and-marketing/2010/11/01/expedia-on-how-one-extra-data-field-can-cost-12m-39746554/ http:

Expedia had a similar problem (http://www.silicon.com/management/sales-and-marketing/2010/11/01/expedia-on-how-one-extra-data-field-can-cost-12m-39746554/ http://www.silicon.com/management/sales-and-marketing/2010/1...) with a different datafield, but the message is clear - use thy analytics well :-)