Madness string 1198

Random mermaid
How do you know if something can talk? What if it only talks under certain specific circumstances, like if you dance with it under the third full moon of a new century in the rain?

I don't want to brag, but... when I was a baby and my dad was changing me, I projectile pooped all over him. He was trying to regroup, so he aimed me in a different direction, so I got the ceiling and the walls too. I was a generous infant.