I used to hide wet underwear in a cabinet under the counter in the bathroom shared with my two younger brothers. Once it was dry, I would slip it into the laundry, thinking my mom wouldn’t notice. I’m sure she realized they had been peed in when she did wash, but never said anything. When my brother was potty training and I was age 6, I took a pair of his thick cotton trainers and wet them, pretending I was “potty training” again. I did this a few times, hiding them under the sink and slipping them into the laundry when dry. At first, I just put them on in the bathroom, wet them, then hid them. Over time I started wearing them longer and having wetting “accidents” while in my room or playing outside, then sneaking to the bathroom to change before being caught. One day I had a pair of the trainers on under my shorts while playing in our sandbox with my brother when he had a messy accident. I had been slowly wetting while playing and realized I needed to poop too, so I got daring and went in the trainers. My mom soon checked on my brother and took him in to get changed, somehow not noticing I was in the same messy state. I kept playing, pretending I was potty training like him, and when he came back out in clean pants, I slipped in to clean up before being caught. When I pulled down my wet, soiled trainers, I realized I was in trouble and the cleanup was a lot more than I bargained for. I spent forever trying unsuccessfully to rinse the massive stain out of the trainers, finally just leaving them in my hiding spot to hopefully slip into the wash as I couldn’t put them in the laundry hamper. Later that evening, my mom appeared in my bedroom holding the stained trainers and my wet shorts that she found under the sink, probably led there by her nose. She knew I was the one who hid them by the shorts, and told me if I had an accident I just needed to tell her and not hide the messy clothes. She asked why I was wearing the trainers, and I just said I didn’t know - they were just in my drawer. Surprisingly, I wasn’t punished, and I became much more careful with my wetting/pooping activities after that!