I don’t know a single person who would enjoy stepping in what I am guessing is dog poop. So this kid is freaking out because he stepped in poop seems like the appropriate reaction. His parents filming his misery is why the internet was invented.
I’d like to see the kid turn the tables on his parents and maybe lay a few turds around the house and record them after they step in it. He’s young, I’m sure he’ll get his revenge one way or another.