The Creepers are given a bad rap when it comes to playing Minecraft. They're not nearly as terrifying as the Endermen, and they're even fairly social when you realize they like to travel in packs. If we had to think of one fault they had,it'd be their painful social awkwardness. Always hissing and slurring their 's' words when they probably just want directions to meet up with their friends.
Which is why it's important to know the motivation behind Creepers before you just try to bash their heads in with a diamond pick-axe.