#7 Wound Licking
You know when you cut your finger and immediately put it into your mouth? That’s just not the prettiest thing to do, especially with people around you. However, if it comes as a consolation, it is actually helpful. Saliva acts as an analgesic to reduce the pain and it also has compounds for battling an infection. Oh, and you can always justify your action by calling it an instinct because it has to do a lot with the revolution. After all, check out all the monkey doing it.