Like animals, humans are territorial. Territoriality is rooted in our DNA. On a daily basis we make a claim to the space around us. We protect our “personal space.” We place pictures and other personalizing items on our desks and workspaces to ensure that other people know this is our space. If we are students, we sit in the same seat on a daily basis and then get upset if someone sits in that seat one day, because it is “my seat.” We place “no trespassing” signs on our property. We look at people strangely if they get too close to our cars. Territoriality has been defined as: “an individual’s behavioral expression of his or her feelings of ownership toward a physical or social object” (Brown, Lawrence, and Robinson, 2004). In other words, humans develop feelings of ownership over the space around them and objects they normally interact with, and they express this ownership through subtle and overt signs—through aggressive postures, explicit warning signs, proxemic behavior, and other such indicators.