Given how much we’re likely to hear about food banks, it is probably worth Mr Cameron’s time explaining the situation. Yes, food banks are there because people need to eat – but it’s not as simple as poverty. Surveys since the crash have shown no real increase in people unable to afford food. Just one in five food bank customers mentions low income, and one in six cites changes to benefits. There are heavily indebted families, abused women seeking shelter or people who have suddenly lost an income. There are people like David Greenhill, a former Rolls-Royce engineer who lost his job when diagnosed with osteoarthritis and then lost his benefits when wrongly judged fit to work. His benefits were reinstated. But in the interim, he relied upon food banks.