If you ever see this come under the door... In the video you just saw, you saw someone using a coat hanger to get into a dorm room. Most of the advice there is to use a deadbolt, but since you're at a campus, you're not authorized, usually, to manipulate the doors or put extra security measures. What I'm gonna show you is an easy, effective way that is cheap, that you can use to defend yourself against stuff like this. So this is the part in question, all you have to do is push both in...