For those of you saying its teh camera:

On day 3 teh cat starts growling before he even sees teh damn camera. have any of you heard of a naturally aggresive animal before? or are you people cat lovers that cant accept the fact that some cat, dogs, animals, are aggresive by nature, no matter how well they are treated. at the start of day 3 teh cat is hissing at nothing while the guy walks near it with the camera not in the cats line of sight.

Also, this is over teh course of 5 days. A normal passive animal would relise teh camera noises or person meant no harm to it within the first day. This cat shows every sign of natural aggresion towards human beings.