Travis is a character that just doesn’t seem sane throughout the entire movie. Starting off he has sleeping problems takes medication and spends too much time in my opinion in movie theaters that show porn. He is so out of touch that when he does meet a woman that agrees to go on a date with him he takes her to a porn movie. As the movie progresses he seems to get more and more crazy. When Travis decides to get a gun he says he is going to cleanse his body of alcohol and all other unhealthy habits he has obtained such as eating straight up sugar. It was said that he was in a war and one might argue that his need to kill or at least daydream of killing was the only way to cure his craziness. It is a possibility that he is experiencing PTSD because of the time he spent at war, much of the movie is focused on the negativities of America. A government Travis views non existent in the city he lives in. He probably went into the service to fight for his country and now that he is back he is disgusted that no one is doing anything when in comparison he put his life on the line to serve the people of America, that could easily drive a man to craziness like it did to Travis. In the end Travis seems to be cured of all the craziness he experienced before as if he fulfilled his need to clean up the city.