Personally, we blame the programmers.
However, yesterday someone else took all the blame, after all it was their fault.
Condensed story:
Alignment on wheels was off, so I was holding onto the robot. Told the certain person to move the slider a little down, they put it all the way up. Robot dragged me across the room, into a wall, then the person over-compensated, and the robot reversed, pushing me the other way.
It was an... interesting.... day. Needless to say that person was blamed for the rest of the day, especially when the chain ripped off, ripped through the plexiglass our electrical was mounted on, and broke one of the spikes that I was then forced to repair.
