Didn't mean to offend popeye. It's a touchy subject. Human waste in the trash just doesn't sound right to me. Caveman even suggests it's illegal. You can throw away a lot of bad stuff if you disguise it good enough, and we probably all do. :(
Years ago in a national park (wilderness type desert, camping allowed in a boondocks type setting), I dumped our 2.5 gallon porti-potti black tank contents in a dug hole well away from expected human travel. Not sure if that was legal, hygienic or what but there you go.
We all do what we gotta do. As someone else said, I hate
public restrooms, especially outhouses.