The cockroaches in my apartments are from the German breed. They are extremely smart and I have been doing some research on them. The interesting thing is that the more you read about a species the more you tend to like it. So with more research I became increasingly attached to my cockroaches and I could not kill them anymore. It was then that Mosi called the management of the building. They have exterminated most of my cockroaches; however, every once in a while I see one. I cannot admit this, but I get happy when I see the last survivors.