Determine the valence intensity of the following tweet, considering the mental state of the author. Assign a real number between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive.
Tweet: @NeoFundie @fitchest Ha. Right. I'm from San Jose, CA, and I was offended right there with you. Dave, go on a walk or something next time.
0.276