I have a microcontroller, a tiny DC motor, a pair of wheels, and a handful of thermistors. From these I build a robot, autonomous to the limit of its battery charge, which senses the temperature of its surroundings and acts on this information to move itself toward temperatures within a range its programming defines as preferable. The speed with which it does so is determined, to the limit of the motor's capability, by the difference between the temperature it's moving away from, and the temperature it's moving toward.

If I use a cigarette lighter or a lit match to apply an open flame to one of this robot's thermistors, it will flinch away from the stimulus as fast as it can. This is closely analogous to "what we humans know to be a typical reaction to pain"; if you applied the same stimulus to one of my fingers, after all, I would initially react in much the same fashion.

From this behavioral observation, do you conclude that my robot's subjective experience a) exists at all, and b) encompasses the experience of pain? Does this behavioral observation inform your concept of the morality surrounding how this robot is treated by humans? Why, or why not?