Does anybody recognize this poem/sonnet?

Basically long time ago in english class we had a book filled with poetry and sonnets and one of them has always influenced my thoughts on politics basically it went along the lines of a man sitting at home with his yams, the first day a van arrives taking away his neighbors but he was safe okay and had his yams, the second day they came for his friend, but he was okay and safe and had his yams and it goes on until eventually they knock on his door