Our Observer, Kwajo Tweneboa, didn't become an activist by choice. Instead, he began campaigning for tenants' rights after living in a London council house for years with his dying father and two sisters. After watching his father being cared for by nurses in a flat that was infested with cockroaches, mice, rats and asbestos, Tweneboa began travelling around the UK to document the conditions in Social Housing and push developers to improve them.