I had just finished programming a website and started to insert the final, corrected content I received from the client when I noticed two e-mails inside the text that were from their competitor.

Me: Is this content really the final version? It seems like it was a copy/paste from the competitor’s website, judging by the e-mails on it.

Client: Good eye! It actually is copied from our competitor. Just change the e-mails to ours.