Kate and Andy sat on the bed opposite me and tried to explain what it felt like to be living in one tiny room with their three young children, sharing a run-down bathroom and kitchen with strangers.
I'd spoken to Kate several times on the phone. I knew her story – that she and Andy had been ticking along quite happily until Andy's rheumatoid arthritis worsened and he could no longer work as a courier driver. It had been a blow, but they thought they'd manage - at least until Andy could have a hip operation and get back to work.
Even when, just before Christmas, their landlord told them he needed his house back, they still thought everything would be okay - they'd find a new house and get the children settled again.
But then they found that no private landlords would let to them because, since Andy had lost his job, they needed to claim housing benefit to help pay their rent. They went to the council and explained their situation, but were told there weren't any family houses available and so their only option was 'emergency accommodation' in a bed and breakfast.
Even as I knocked at the door of Kate and Andy’s 'B&B', I was expecting a kind of run down guest house - maybe a bit dusty and shabby, but okay as a temporary measure for a family to live in.
When Kate ushered me into the room the family were all sharing, I was shocked. There were two beds and a mattress on the floor, all singles. An old fireplace had cracked and broken tiles, and the curtains were hanging lopsided, ineffectually blocking out some of the August heat. There were plastic boxes piled up around the room, with a much loved doll reclining against one of them.
Andy explained the sense of failure he felt when he walked into the room for the first time: “I actually came across to this bed and burst into tears, realising what a terrible place my family and I were going to have to cope with. I felt as though I’d failed my children and my wife.”
Meeting Kate and Andy and seeing what they were experiencing through no fault of their own was shocking. I've got kids too, and I can't imagine having to take my daughter to a place which is dirty and unsafe, and having to share a single bed with her on the floor as Andy was doing with their youngest.
Sadly, Kate and Andy's experience is not unique. Government figures show that there are 90,000 homeless children in Britain living in temporary accommodation. More than 2,000 families are living in B&Bs like Kate and Andy's – a figure which has doubled in the past three years.
Over the past few months Shelter has been investigating the conditions in which homeless children are being forced to live. We've interviewed 20 families and discovered the impact that living under such stress can have on children, including reports of bed-wetting, depression, and even self-harm.
One mum told me how she would get up at 5am to clean the communal bathroom, as it was always left so dirty and she wanted it to be in a decent state for her children to use before school.
We spoke to families who'd been moved away from their home area, meaning their children were making journeys of over an hour and a half each way to school.
Parents told us of the difficulties of cooking for their children in busy and unfit kitchens, and of how they had to rely on unhealthy and expensive fast food. Most families had to eat their meals on their beds because there was nowhere else to eat.
As Kate and Andy found out, sometimes all it takes is one thing like an illness to quickly tip a family into a spiral towards homelessness. It can happen to anyone.
A few weeks ago, I had an email from Kate. Thanks to support from Shelter, the family are now settled in a proper home. Andy has had his hip operation and they are hopeful that he can soon get back to work, and they can finally put their ordeal behind them. We try to make sure families get the help they need during a time of crisis, but with the number of homeless families on the rise, we’re bracing ourselves for a surge in demand for our already over-stretched advice services. But, no one should have to fight bad housing or homelessness on their own, and we are determined to be there for every family that needs us.
Shelter is calling on the public to help make sure we can be there for Britain’s homeless children this Christmas by donating to our urgent appeal. You can find out more here.