"This particular run had our PR2 alpha robot navigate through eight doors, and plug its power cord into nine outlets. In this video, you can see the various challenges our robot faced, such as a crowded office environment and the abrupt appearance of a human obstacle. We nearly sabotaged the run early on. Folks around the office were eager to track the progress of the robot, so many people ran their own monitoring programs on the PR2. This caused an increase in CPU load, starving the navigation software. Nonetheless, the robot was able to continue with the run, albeit more slowly and cautiously."https://www.youtube.com/watch?v=0S2dc_B-6Kg