Originally Posted by crow_noir
There was an experiment done where there were some volt meters or something like that... I forget what they are called. The were attached to some plants. A high school teacher was conducting this. he asked for one person to stay after the class. He instructed that person to one day walk into the class and brutally kill one of the plants. For a whole week everyone took care of the plants. Then the morning after The Day the teacher had the students walk into the class single file. When the person that killed the plant walked into the room the needles went flying like crazy on the meters.