Law dog the more you feed them regular food, does thier poop change as well??

Something was getting in the sons chickens, so he sat a live trap caught a possum like every other day. Well one day our daughter had a friend over, she said call my mom she loves possums and we have them as pets. Well my wife messaged her and she took it, I was at work. Later that evening she sent my wife a picture of her giving this thing a bath, it was a full grown possum, I said those things are nasty! She took a picture of 3 running around her house. Yuck! She showed up to bring cam his cage back, with a shirt that said possum whisper! And told him if you catch a female let her know she wants to breed them... I told cam, never call this lady again! I refuse to help with the breeding of a possum! Im sure she celebrates national possum day