That's some crazy profit percentage you are looking for and the only investments that can offer a 1/3 return are extremely risky investments, and even with that you wouldn't be getting anything back, no one is giving loans for %33 in one week or any short term...
True. No one will buy that crap you are going to put up. Besides your friend should not be overwhelmed on what bitcoin can do. Yes, it can be earned, invested, and trade but it will not give you an easy money. Just like fiat currency, it takes time for it to gain profit throught trading and investing.
And because of 33% interest rate I think that guy whose friend gave him 3 btc should end their friendship.