My younger brother used to walk and talk in his sleep. He'd go around the house, turning all the lights on. One night, in the middle of winter (and we live in NH so you know it's cold, especially back in the 80's), my parents heard the front door open, so they checked and found my brother outside in the snow with his pj pants around his ankles, peeing.
My husband is also a sleep walker/talker. One night he got up in the middle of the night and stood in front of the fan, swaying. I watched him start walking towards the bathroom. Something felt off, so I followed him. I opened the bathroom door to find him peeing in the sink. I was like "Dude, what are you doing?!" He answered "Taking a piss." I replied, "In the sink?" He answered, "No." I was like "Um, yeah." He said "Oh..." and continued peeing.
I tend to wake myself up talking in my sleep. Usually about pickles. And my kids just laugh hysterically in their sleep. Tho two nights ago my daughter got really mad at me. She got up to close the window, opened it again, and then shouted "Can I get some help here?!" I was like "What do you need help with?" She goes "Nothing, nevermind. I'll figure it out myself, since you won't help me! God!