durg money

I have enough money from secretly sellling drugs to buy a nice car. how will explain to my parents and family friends how I got the money? I'm only in university, never had a job etc. I want to make the fact of how i got the money reflect well on me - ie: brilliance or hard work or something , and not something like - I won it or I was given it as a gift. What do!

i'm in uni,
i'm not in america
we don't a retarded system of going to uni far away from your parents for no reason

prostitutes don't reflect well on your achievements