The reason some people do not believe certain animals, especially snakes, cannot have a personality is because they cannot make facial expressions. Snakes cannot even blink. But with us keepers who have been around multiple snakes can see the difference in the way they act. Some are friendly, others aggressive, some eat like food is in short supply while others are on a diet. Some snakes feel they must always be defensive where others couldn't give a care and is loving life. You take these personalities mix them up and most snakes are unique. Of course there are other ways snakes choose to live their lives and not the ones just stated but they are the easiest to see. If not a since being, living creature had a personality, they wouldn't have a life period. And I don't mean going to the bar with friends life, I mean be alive, on this earth. Personalities is what makes us us.