I once worked at a law firm where a word processor got sacked because of this. It's common practice for word processors to put placeholder phrases in long documents, to keep track of changes and so forth--near the end, they'll globally search, replace, sanitize, then save the safe public version. This instance, the lawyer needed the document asap for something last minute/urgent, the word processor working on the document wasn't around, he took the document that was on the server, presented it to his client... Only at this point did the lawyer realize the document he'd handed the client was filled with "FUCK" and "SHIT" and so forth. Bam. Word processor was fired that day.