We've all heard of retail therapy -- the act of buying stuff we may or may not need in an effort to achieve temporary escapism -- but what about the hardworking folks on the other side of the counter? On Customer is Wrong Day, those serving retail therapy seekers can vent during one of their busiest times of year... at least in their minds.

Anyone who has worked in a service industry knows that most customers are painless and even positive. Most of the time the motto "The customer is always right," serves everyone, because people would rather make an exchange and get on with their day than be miserable. Sometimes, though, a customer is so wrong it hurts. For those occasions, we salute those who practice self-control in the face of adversity.

Scroll on for 11 cathartic Customer is Wrong Day comics.

Ziggy By Tom Wilson & Tom II July 7, 2011

WuMo By Wulff & Morgenthaler April 6, 2014

Baldo By Hector D. Cantu and Carlos Castellanos Oct 12, 2007

FoxTrot By Bill Amend June 12, 1997

Grand Avenue By Mike Thompson June 9, 2011

Ziggy By Tom Wilson & Tom II Aug 22, 2005

Click "Next" for five more comics where the customer is wrong!