Ironically, we had cabin U111 on the Elation last month and the people in the cabin next to us (U115) were more "noticeable" than we normally experience. Lots of smoking which also seemed to get into our suite through leaks in the ventilation. Late night noise a few times. Kids screaming and fighting with each other. Fortunately the noise was always short-lived.
The prize still went to the people on our other side (U107), who were drunk all the time and verbally discussed tipping the room service steward with a piece of fruit as we passed by their open door one evening. The poor steward was standing there hearing this discussion. I felt like tipping him myself just to end it.
"Bus riders". I like that, Linda. I also like "starfish" for those who complain about everything (and I am not talking about you, Mary!).