I'm not a Comcast customer,but,I found a 58 second video online of a Comcast technician "at work",so to say. 
Depending on ones sense of humor,some may find this amusing and some may not.Check it out at this link. http://www.youtube.com/watch?v=CvVp7b5gzqU&search=comcast
Depending on ones sense of humor,some may find this amusing and some may not.Check it out at this link. http://www.youtube.com/watch?v=CvVp7b5gzqU&search=comcast
