The union also threatened to disrupt public transport during the Olympics over the issue of a bonus payment for London bus drivers.

BBC: Unite Union warns of co-ordinated strike action

Those staff who delivered outstanding performances were entitled to a bonus payment by virtue of the terms and conditions of their home department.

BBC: Wales office looks to share office accommodation

They used credit cards, but they kept the balances low and would pay them off every time Dan got a bonus payment of a few thousand dollars.

NPR: Weak Housing Market May Not Be Signal to Buy