UK politician finances scandal of the day

The BBC reports that top UK politician Baroness Warsi failed to declare substantial rental income from property she owned.

The baroness had declared the property on the register of ministerial interests, and it had been cleared by the Cabinet Office and HM Revenue and Customs. But she failed to inform the register of Lords' interests that she was letting the property, after she moved to a new home closer to the House of Lords. … Conservative party sources have described the incident as a 'cock up' which has been remedied.

Sure, there's that old chestnut about mistaking stupidity for malice. But it would take a lot of stupid to not notice how much you make from property that you rent out. What is malice but self-aware stupidity?