burn-in

Has anyone ever seen a plasma with burn-in? I've seen one and its pic is already on two threads here. (But burn-in in that set was caused by abusing the set at the store.) Apart from my pic I've managed to find only one more pic -...

As I had told in this thread - http://www.hifivision.com/television/9221-help-ive-got-demo-piece-ir-am-not-sure-what-do-now.html - the dealer tried to pass off a demo piece but thanks to the advice from the people here, I was able to get the dealer to promise to send me a new piece once stock...