Personally, I think communication at the best of times is often difficult, we've probably all experienced situations where we literally can't find the words to explain what we mean or how we feel. One of the reasons why I love advertising is the ability to influence how people think and feel about a brand whilst also ensuring the assets, culture, ethics and often history is also reflected - a great example of this is Cadbury's.
Take a look at some recently banned adverts which could have been effective and possibly very influential if these considerations were ignored:
Modern day family planning
|Canadian 48 sheet|
|Increasing the awareness of iPod deaths among young adults and children|