Operating an unmanned system can be a tricky task. The display may not present an accurate image (see War and depth: Why your battlefield robot needs 3D). The controls might be sticky. The effectors at the ends of robotic arms may be inadequately sensitive.
Nevertheless, it is possible to complete a delicate job via remote control. Watch the video below which demonstrates robotic arms controlled by a surgeon suturing a grape.
(BTW, a You Tube commenter noted that the grape survived the surgery and went on to live a fulfilling life as a raisin)
