Re: Yes but...
And just to spin off to an ai tangent..
This is why we need to program AI/ robotics to feel & understand pain - as a control mechanism, as well as a method of immediate/ physical feedback sensing. After all what is physically triggered pain other than a highest priority feedback message that can cause involuntary action (and emotional pain an evolved analog from physical + empathy).
Of course given we (generally) abhor inflicting unnecessary pain on others how well does that match up with creating a sentient device?
I wonder if Google has done any research on the topic...