What do you think is the most dangerous emotion humans have? My vote is for boredom because it causes humans to search for greater things. Those greater things are not always great though. War, sex, sadism, gluttony, money, murder, theft, torture, anger, frustration, depression etc. Can all come from boredom. When kept as a pet (not in a zoo) a chimpanzee will not receive the amount of stimulation it needs to keep it busy (at least in most cases). It's very common for a bored chimpanzee to just rip someone's face off, or engage in other violent acts. I don't know though, what do you guys think?