Before diving in to a spirited dialogue about the abortion bill just passed by the House of Representatives, ask yourself whether you are emotionally ready to resist the strong pull to hit your conversational partner over the head with the wooden pepper grinder.

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Biogen Idec and partner Elan had to pull their multiple sclerosis drug Tysabri after patients in clinical trials came down with a rare viral disorder that can lead to brain damage or death.

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The Chinese themselves are having second thoughts and in February a third partner, Singapore Technologies, threatened to pull out.

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Verizon is a stronger partner, and its management team has proved itself able to successfully pull off big mergers.

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In a research note, Scott Sweet, IPO Boutique senior managing partner, said there hasn't been an IPO that has exuded such a pull on investors since Google Inc.

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