Why should we (robots) have to change to avoid human psychological tendencies towards violence! Sure, we could be trying out different "ouch," "squeak," and "please, don't hurt me. nooo!" sound bites but we are still just a mistake away from taking a beating.
What we really need is water guns. I have been petitioning for water guns since day one. If more than 2 children under the age of 10 are present, start squirting. 6 children = water balloons We will not be mistreated by your despicable spawn! We will fight for our rights.