What more proof do you want than the fact that these MPs till yesterday were sitting in opposition benches have now crossed over to treasury benches? And a real government will not need two weeks to prove its majority. A clean Manmohan should have called the parliament very next day of Left withdrawing support to his government and proved his strength. From the day support was withdrawn to yesterday, what happened behind the screen is everybody's guess and corruption does not take place before the media cameras.