This is no small matter. It goes beyond the "ick" factor.
There was an infamous murder case in Houston about 30 years ago where a doctor (well-known plastic surgeon, Dr. John Hill) killed his famous equestrienne wife (Joan Robinson Hill) by concocting a petri dish of fecal matter and applying it to her pastries and then denying her medical care. By the time they got her to the hospital her system was so overwhelmed with poisoning that she died.
Hill then married his paramour and a short time later attempted to kill her by ramming the passenger side of his car into a bridge abutment at high speed. She subsequently testified against him at his trial because the petri dishes had been stored at her apartment. He was not convicted; and, by then, he was on his third wife.
Ultimately, he was blown away in a shotgun attack at his front door by a hired gun as he & his new wife returned home from a trip to Las Vegas a few months later. The killer was mysteriously shot dead himself in San Antonio a few weeks afterward.
Most people thought that the person who hired the killer to dispatch Hill was the father of the 1st wife, Ash Robinson, but I don't believe it was ever proved in court.
I remember that story. It was a made for TV special with Farrah Fawcett and that guy with a mustache bigger than him, can't remember his name but he was on Lonesome Dove??