Simple, just rate the post above yours out of 10000 on a Random scale! You then post your random thing on the same post. Max post is 30 words! As well the sentence must make a tiny bit of sense and use semi-proper grammar! No double posting and anyone can play! No teaming either!
Example:
Derpyherpa: Cow goes oink

Me: 6969/10000 randomness

I'll start...
One time the ocean ate a sandwich down the drain. The beginning.

 

4443/10000

Roses are blue, Violets are red, my head is green, your sun is rainbow.