For Mr Horne, putting effort into working long and unsociable hours has not helped his situation.

BBC: UK Politics

North Tees and Hartlepool Foundation Trust wanted to reduce enhanced sick pay to staff working unsociable hours.

BBC: North Tees NHS staff sick pay dispute settled

While Adam's father Peter Lanza, a tax director and vice president for GE Energy Financial Services, was outgoing, Nancy could be "unsociable, " Mary Ann Lanza said.

WSJ: Suspect, Mother Come Into Focus

Those who work unsociable hours or who live in high-cost areas will benefit from several different types of bonuses - the effect of which will be different for almost every employee.

BBC: Selling the NHS pay deal