Best: When we see a cute baby mammal, we can go "awwwwww lookathowcutethatlittlebunnyiiiiiiis! awwwwuddiwudijhjghjdfghvzmdjvjjaafsfsbhsbgfa! It's so cute!" and don't have to worry about our friends teasing us.
Worst: Uhh...it's slightly harder to open jars? lol