res ipsa loquitur

Yahoo's 'Poison Pill' Against MSFT Takeover Deemed 'Nuts'

It's not "nuts--it's extreme brinksmanship. Just like in action films when the bad guy grabs the protagonists significant other and puts a gun to their head. They really don't ever intend to pull the trigger as it would be suicide but they are so desperate they make a bold risky move and hope the hero isn't thinking clearly. Yang was willing to kill Yahoo to save it. Microsoft realized the integration and brain drain would make the purchase a nightmare money pit and backed down.