4; I have published several papers with my Ph.D. advisor Mac Hyman, who published a couple of papers with Bill Beyer, who published a paper with Stan Ulam, who published a paper with Paul Erdos.
3; I was an extra in the movie "The Avengers" (2012). I was one of the scientists at the Shield Headquarters with Samuel L. Jackson. Samuel L. Jackson and Clark Gregg appeared in the movie "Nick Fury". Clark Gregg and Kevin Bacon appeared in the move "The Air I Breathe" (2008).