@criver : I know it's hard to admit with that limited mind of yours but yes, getting hit to strengthen your body is a part of some styles of Karate, and the kata shown in this chapter is Sanchin. Check out Gojo-ryu or Kyokushin styles for more info or get lost.
@KatilTekir Well it has been rendered as a cliché here but yeah, some mafias pride themselves in not touching drugs.
In the 2nd or 3rd Film of "The godfather", there is tension because some want to begin selling drugs.