Funniest comment on today's PMQs

I missed today's PMQs and so was catching up on the BBC's live coverage where I saw this comment:

'1218 Its about time cameron stopped blaming everything on the past 13 years and started answering questions with answers looking to the future. Get over the past 13 years
bhamlabour, birmingham"

Quite incredible as Labour were blaming the last Conservative government right up until the general election.