  A mobile robot deployed for remote inspection, surveying or rescue missions
can fail due to various possibilities and can be hardware or software related.
These failure scenarios necessitate manual recovery (self-rescue) of the robot
from the environment. It would bring unforeseen challenges to recover the
mobile robot if the environment where it was deployed had hazardous or harmful
conditions (e.g. ionizing radiations). While it is not fully possible to
predict all the failures in the robot, failures can be reduced by employing
certain design/usage considerations. Few example failure cases based on real
experiences are presented in this short article along with generic suggestions
on overcoming the illustrated failure situations.
