its rare that a person feints while in a seated position, its far more common while standing.
Only because it's hard to advance or retreat from a seated position. I bet there's an example in a Three Musketeers movie though. Allez!
he pulled an app off a public website, got it running on my computer in minutes and before we were done with dinner he had my wifi password
Presumably something you had recently typed and was in memory, had stored in a file, or had typed while the program was running. Your friend showed you a magic trick. "Look over here at my right hand while it does something awesome. Now look in my left hand to see what my right hand did!" It was his left hand all along.
A morsel of genuine history is a thing so rare as to be always valuable. -- Thomas Jefferson