It is called hallucinations/delusion. In other words fake impression. You feel like there's someone but in reality there's no one. This happens because of chemicals released by brain(no idea about name)
Because it simulates a word-of-mouth recommendation. In addition, a word of mouth promotion is important for every business as each contented customer can ox dozens of new ones your way. The word of mouth is the transient of information from an individual to individual by the oral message which could be as simple as influence somebody the period of a day.
Earing low or not at all can lead to denial of basics needs which might utge someone to commiy a crime to take what he thinks he need.
Breaking and Entering,
not technically a law but cheating.