5 Bitter Feuds on Wall Street

BOSTON ( TheStreet) -- Being a success in business requires a thick skin. There are perpetual lawsuits, claims of patent infringement and political debates to overcome.

Puma and Adidas, for instance, were born as separate companies by feuding brothers. Back in World War II, the brothers went so far as to build competing factories on opposite sides of a German river.

More recently, Apple's ( AAPL) Steve Jobs and Adobe ( ADBE) CEO Shantanu Narayen have traded barbs over Flash plug-ins.

Some of the more bitter business feuds of recent years follow:

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