What is something that makes you really angry?

Something that makes me really angry is when people do things that they know are hurtful to other people and just totally disregard any feelings that may be brought forth from what they are doing. They become cruel and vicious in their attempt to specifically cause hurt to someone else. I do not think that people do this simply because they enjoy hurting others, but because maybe they are conscious of themselves and make people not focus on them by hurting others, or a number of other reasons. I saw this topic and had to write on it because something like this recently happened to my own sister. My sister is in the marching band at her high school in Iowa and was talking to another girl who was in the marching band about how she was really excited about playing in the first game. The girl made a rude remark to her and walked away. The next day my sister’s flute went missing and her and the teacher and a few other students searched up and down in the band room for her missing instrument, but found nothing. It was coming really close to the game and my sister was not going to be able to perform in the game that she had been so excited about. Luckily, the school had a spare flute that they loaned to her for that performance. When my sister showed up at the game, the same girl looked at her and asked why she was there if she didn’t have an instrument to play with. My sister explained what had happened and the girl gave another rude comment. The very next school day, the flute showed up in the band room that had been searched up and down. It was confirmed that the girl had taken it. This type of thing bothers me extremely, especially when it is my own sister that it is happening to. I spoke with my sister when she thought she was not going to be able to perform and she was so upset and said she was tired of cruel jokes. It hurt me to know that someone could be so uncaring that they would make someone else feel bad or upset, and that they would try to take away something from someone.