I don’t get it and I don’t want to get it, but here’s a robotic something-or-other that pushes a shopping cart around while on fire.

Exactly.

Carlos’ inventor says…

“Robotics are often used in environments which are considered dangerous to humans. Deep sea exploration, nuclear cleanup and volcanism are some of the ‘higher profile’ adverse environments which robots are used. My question was, ‘What about other dangerous or hazardous areas?’. For example, homeless people live in extremely dangerous environments. Shouldn’t there be automated equipment used by this strata of society? So, for this project I chose to implement an automated walking, homeless shopping cart.”

Ah, now I get it.

Walking Shopping Cart [GizmoGarden] via TechDigest