Classic example today of a perverse incentive 1 in operation.

“The Renewable Heat Incentive, launched by Mrs Foster when she was Enterprise Minister, offered subsidies to businesses switching to greener fuel.

When some were found to be heating empty warehouses, it emerged a lack of cost controls meant the more they burned, the more they earned from the public purse.

For every £1 they spent, participants received £1.60 in subsidies, resulting in the scheme overspending by an estimated £400m” 2

1 https://en.wikipedia.org/wiki/Perverse_incentive
2 http://news.sky.com/story/n-ireland-assembly-walkout-in-protest-at-arlene-foster-statement-10702173