Okay but what if: someone introduces a second romba. It is a normal romba, it goes around vacuuming. Sometimes it bumps into people and beeps. Sometimes it gets lost and people have to bring it back to its loading station in the student kitchen. It's a normal romba. For some reason, its existence DEEPLY unsettles The Romba, the one that may or may not have teeth. The Romba tries to bully the normal romba into submission but it's a robot, it does not care, it just beeps and vacuums on.