In this context, Mr Clegg did once (unforgivably) talk about "wiping the slate clean".

BBC: An economic mid-term review

Lords reform might strike voters as an unforgivably esoteric pursuit at a time of economic misery.

ECONOMIST: Electing the Lords

Unforgivably, the victims learned about the imminent release of these violent criminals through the media.

CENTERFORSECURITYPOLICY: Holder's 'disgraceful' history

Sir Michael described the "Sachsgate" incident as a "uniquely toxic combination of profanity, misogyny, bullying and black farce" which had revealed an "unforgivably cavalier attitude" to editorial standards.

BBC: Sir Michael Lyons: BBC strong despite gaffes

President Bush has strangely, unforgivably, given up.

FORBES: The Sneaky Government & Your Tax Burden