I just think of mine... pooping machines!Im sure she is so friendly because she was imprinted to humans. Unfortunately it is not possible to potty train a duck because the don't have the muscle to hold it in. They poop when they have to, where ever they are. If she's walking around the room, she'll usually go to her pen if she needs to poop. Once in a while I have to grab a lysol wipe and clean anything up. If she's hanging out for a while, we have duck designated blankets and towels we'll throw down over us, the couch, the car etc. and if she goes to the bathroom, it's on something I can easily shake off outside and throw in the washer. We have duck diapers but I try not to use them... I'll put it on if were going out in public into a store or a persons house. She lives indoors full time and I just feel like it would be so unfair to make her wear a diaper full time. It works out pretty well though and her pen isn't too difficult to keep up with.
I'm glad you don't make her wear a diaper, I agree. Doesn't seem fair. Sounds like you've got a good system worked out with her. A house duck. Who'da thunk?!