This happened to me when I was in second grade and it's all true.

So one day I was walking to school like I normally do when all of a sudden a crowd of kids comes and takes me somewhere.I was just like WTF IS HAPPENING!!!I tried to get away but they circled me and it was no use.About 5 minutes later I'm thrown into the sandbox and land in front the most popular second grader there is.She just laughed in my face so I got up, brushed off all the sand and ran off.She was furious.The crowd of kids from earlier started to chase me and I looked back and was like oh [bleep] no.I knew there was one way to stop them, well half of them.It was...
Kooties(we were in second grade so we all believed in kooties).
I picked up some grass, rubbed it on my shirt, and threw it.All the boys ran away screaming.
As for the girls I found something better.I ran torwards a boy that had grass on his shirt and chased him torwards the girl(lucky for me they were too busy laughing at the boys).The boy ran into them and they all fell down then got up and ran away screaming and I just walked to class as usual.
The end.