Originally Posted by Anthill
If you are a 'hand-slapper', 'shoulder puncher' or whatever then are are also an inarticulate semi-simian who is undeserving of your position.
Not necessarily so Anthill.
I know of an F/O who was smacked on the back of his hand, after he unilaterally decided, as PF part way through a hand flown SID, to depart from SOP and do some switching that was the job of the PNF.
When he said, "I'll get that for you" (not that the PIC was overloaded mind you), the PIC said, "No, that's my job". He ignored the PIC and made to make the switch selection.
Much like one disciplines a child, a light smack on the back of his hand was needed because he was intent on his departure from the SOPs, not doing what was expected or as instructed, when there was no need or imperative to depart from SOP.