that is animal cruelty! You don't poop on a dog, (or did you mean you made a dog poop?). You don't make a dog poop, (if that's what you meant).
Like, if a man's gotta poop, then he's gotta poop! You can't force him to poop. How would you like to get shat on?
btw, please keep in mind that I'm confused if you either pooped on a dog or made it poop D: