Through a combination of natural talent, exhaustive research, and plain hard work, I'm good at it. Any investigator who can't handle the psychic burden is in the wrong business.
Madness string 84064
Guinea pigs all eat shit. It's part of their behavior. Their food passes through their digestive tract so quickly that they reingest and reprocess it and make second poop. They don't eat the second poop, discerning tastes and all that.