Asimov's First Rule

A researcher in Slovenia is conducting an experiment aimed at identifying and controlling robot-human pain thresholds.  How hard can a robot poke, grab, etc. a human?  It's a worthwhile experiment as more and more interaction is liekly in our future.

Of course, here in the castle when I hit 'Puter he always rates his pain as "unbearable".  But he's like that.  Maybe I'll get Sleestak to dial down the thermohydralics to something under a couple thousand pounds per square inch.