I had comcast (doesn't deserve to be properly capitalized) in my previous apartment. I had my own modem and my own router. When I cancelled service because I was moving, the phone representative told me that the earliest they could shut off my service was ~2-3 weeks away. My bill would continue till they shut it off. I laughed and told her that I want my service shut off today and that my bill would only be up until the previous hour. She said okay. Later on, comcast tried to charge me for a modem I never rented. Filed in small claims. Default judgement in my favor. They tried to get $200 from me. Instead, I got $5000 from them. Thank you comcast. And no, you can't use my power, but you can rent it for $19.99 per month. If you fail to return the kW's used, then you will be charged $199.99 per unreturned kW. Go to hell comcast.