A young boy is asking his father how he got so rich in the stock market.

The father says, “well son, I do a lot of careful research. I find a stock that is solid, has a lot of promise, has good people behind it, and I take $100 and invest $100 in that stock. Then I take $1000 and short sell that same stock with the $1000.”

The son says, “how does that make any sense?”
The father replies, “cause anything I invest money in fucking tanks”.