I work with robots regularly, and frequently I have to work inside the cell while setting up. This involves having a buddy outside the cell to activate the safety circuits after the door is closed. While I am inside my safety is totally in my own hands. It is important not to allow oneself be distracted by cellphones and the likes which can break your concentration and perhaps cause you to make a mistake. As with all things, familiarity breeds contempt, and unfortunately even a tiny 10KG robot can kill. It would never be the machines fault though, so as in the topic header, lets be extra careful.
