There is nothing the Trinamool Congress leader Mamata Banerjee enjoys more than a good tantrum, and there is no saying who or what will provoke it. This firebrand lady has a problem for every solution.<br><br> Some years ago, she boycotted the Lok Sabha, apparently displeased with Speaker Shivraj Patil. On another occasion, with Speaker P.A. Sangma presiding, she threw her shawl at the chair. You have to hand it to her for being an interventionist, even though most of her misguided aims almost always backfire. <br><br>Whether it’s Tata’s Nano or Kolkata poltics, Didi is famous for making the same mistake twice.