One thing I’ve always wondered about the Milgram experiment - why didn’t anyone wonder why on earth they needed to pay a volunteer to ask the questions and apply the shocks if the experiment were really on the learning?  I mean there was an experimenter right in there with them coaching them to apply the shocks - didn’t anyone say, “Hey? Why do you need me to do this?  This makes no sense if what you are testing is this other dude’s ability to learn.  YOU could save yourselves $4 a pop and just read the words and administer the shocks yourself. ”
I’m sure I must be missing something important here.  Otherwise can someone say “Knock, knock - anybody home?”