There may have been a snake there, once upon a time. Maybe. Or its possible that Comcast guy is afraid of pinecones. Or that he just didn't feel like installing cable. Whether there may or may not have been a snake up there or not, apparently it's gone now, and I'm only slightly more scared of going into my attic in general.
If I start hearing "Rip... Tear.. Killl" through my walls, I'll let you know. Luckily I know the parseltongue for "open up."