my boss just rubbed his hand for ages. in a 'i am getting ready to do some work' kind of way. what is that?

also, what tis that saying about, 'rob peter to pay paul'? like, who is peter and who is paul. the sayings like this usually come from facts and events. who are these people.

you can also yuse this thread to discuss bodily movements and old timey sayings and where they came from. commence.