Pill for Dog Sh#T

There is a pill you can give to your dog, that allegedly makes his doo doo, "less palatable". In other words it makes his "sh$t" taste bad.

Now.........??.......what's that testing environment like?

"Subject animal 635 given the treated feces. (Microphone to the dog's lips) (animal whines) "subject did not like the taste of his own feces. Test successful."