There have been a few careless errors ( the marriage policy slip-up , Chris Grayling 's odd stats about violent crime , the teenage pregnancy decimal point mistake ) , a few awkward moments where their explanations haven 't carried the Westminster village with them ( the necessary softening in rhetoric about spending in the first year of office , Andrew Lansley 's odd negotiations over social care ) , even a few stories about Labour that have gone for five entire paragraphs without calling for Mr Brown to resign .