With almost a decade of experience, HelpMate is a material transport s
ervice robot that works in hospitals, side-by-side with human co-worke
rs, delivering equipment and supplies to and from nursing units. Much
has been written about the technology that allows HelpMate to navigate
autonomously in such non-structured environments, but little attentio
n has been paid to the non-technical aspects of these service applicat
ions. What special conditions exist in non-manufacturing environments
that a service robot must be able to cope with? How should a service r
obot be introduced into such environments? How is such a robot receive
d by its fellow human beings? This paper shares the lessons that HelpM
ate has learned.