To those who have TTs or PUPs with toilets and black tanks: do you let friends, family and guests use your toilet? I wondered this recently when I watched a guy empty his tank(s) into the sewer with latex gloves on. I dumped mine a couple days later and saw what comes out of the black tank through my clear elbow. Yuck. I mean, it's gross enough to dump a week worth of waste generated by you, your spouse and your kids. Do you let people use your toilet? Maybe family, friends or guests who tent camp next to you and won't have a bathroom of their own. Do you let their kids? How would you say no if they ask? Explain that black tank waste space is limited? Explain how black tanks work and why it's preferred if they use the bathhouse? Joke how it's fine as long as they go number one? These guests of ours aren't RVers and probably don't even know the waste is stored (in a limited quantity no less). I couldn't find a thread here after a quick search. I'm just wondering whether or not people are cool with this.