about 2 hrs ago our cats (both fixed) golden (female) and orange (male) were fighting in the living room like they were defending thier territory. no other cats got in through the windows (both have screens) and no one was trying to get in. right now we have them in seperate carriers in the basement with food and water. the only time ive seen something like this has been when the cats at my mom's get out and chase cats out of her yard. unlike my mom's (indoor/outdoor) cats ours are indoor cats only. other than that it was a pretty good birthday for jason.