My brother was angry at me once (can't remember why) so he started putting half-burnt logs on my bed and getting the coals everywhere. I live in an old house, so the locks are on the outside. I shut my door while he was in there, locked it, and went to get my parents. They caught him just outside the door... he broke it to get out. I would recommend punching a tree (even though it didn't do anything to you); it will get rid of your anger a little... and probably hurt you, but at least it will be less expensive than breaking a door.