Lies, damn lies and independent research

According to a department of Bristol University "individuals in the non-profit sector are significantly more likely to donate their labour, measured by unpaid overtime, than those in the for-profit sector."

According to the CBI and Axa "The gap between sick days taken by workers in the public and private sectors has widened to a record level ... with the average public-sector worker taking nine days off compared with 5.8 days in the private sector."

Besides, unless you are doing shift work and are being paid by the hour, there is no such thing as 'unpaid overtime'. In an office hierarchy, this is called 'brown-nosing your way up the greasy pole'. In the public sector it's called 'catching up on the all the stuff you sort of haven't got round to doing yet somehow, oh shit, there's a quarterly deadline looming'.