What would YOU do if you won $500,000 on a reality show? Would you buy a house, a car, or ... deal drugs with it? Adam Jasinski, winner of 'Big Brother' season 9, went the latter route -- he's been arrested for using his $500,000 prize money to buy and resell the painkiller Oxycodone, which is considered a controlled substance.

According to reports, Jasinski attempted to sell 2,000 pills to a government witness in Massachusetts. He'd flown to Boston from his home in Florida, getting into the witness' car and showing him a sock filled with two bags of the pills. The witness drove him from Logan Airport to a strip mall, where police arrested Jasinski (but not before he struggled with the authorities and, according to the Huffington Post, threw the sock underneath a nearby car).What would YOU do if you won $500,000 on a reality show? Would you buy a house, a car, or ... deal drugs with it? Adam Jasinski, winner of 'Big Brother' season 9, went the latter route -- he's been arrested for using his $500,000 prize money to buy and resell the painkiller Oxycodone, which is considered a controlled substance.

According to reports, Jasinski attempted to sell 2,000 pills to a government witness in Massachusetts. He'd flown to Boston from his home in Florida, getting into the witness' car and showing him a sock filled with two bags of the pills. The witness drove him from Logan Airport to a strip mall, where police arrested Jasinski (but not before he struggled with the authorities and, according to the Huffington Post, threw the sock underneath a nearby car).

It's believed that Jasinski has been selling Oxycodone -- using his 'Big Brother' winnings -- up and down the East Coast for the past several months. If convicted, he would face a maximum sentence of 20 years in prison and a fine of $1 million.

There's no word on whether Jasinski has any of his prize money left to help pay off that $1 million fine.

Watch the video of Jasinski's arrest on TMZ.