This is the bill that a Comcast customer recently received. The first name on the account was changed to "asshole" by a Comcast customer service representative. Go read about it...awful.
My own experience with Comcast was hilarious fun. I was using the Comcast E-mail service with our account (cable and Internet) and they arbitrarily cancelled the account and destroyed the E-mail along with it.
I have been asked, numerous times and in person, to switch to Comcast. I will never, ever do it.