Even the most reputed brands have a history of marketing blunders, and some of them paid for them in the worse possible manner. Such failures were not always the result a big strategic failure. There are examples of big time ad campaign disasters due to least expected reason behind them e.g. use of wrong word and slang, uncalculated cost of offers, exaggerated hype, over exploitation of some sentiments, and sometime just share bad luck. Here is the list of top 10 marketing disasters of all time, which make good lessons for rest of the marketing world.