The robot was so difficult to get into and out of that Bob would stay put during breaks in the shooting. Passersby would sometimes see smoke wafting out of the robot.
"Danger, Will Robinson" was an oft-heard phrase on the show, usually repeated while flailing his robot arms about, although the voice was provided by someone else. Will Robinson was the young son of the Robinsons who were modelled after the family in the novel "Swiss Family Robinson".
Bob May was 69.
During show's run:
1995: Bob is on the left.