The President does not understand gambling at all
 

From his hard hitting interview with Rolling Stone magazine.

"You still have a situation where people making bets can get a huge upside, and their downsides are limited," Obama says in the edition that hits newsstands on Friday. "So it tilts the whole system in favor of very risky behavior."

rebates??

Positive expectation? Sign me up!! :D

I believe he is referring to highly leveraged derivatives trading using your companies (Shareholders) money when your bonus is based upon a percentage of profits earned. Upisde is tens of millions and the downside is oops and a loss of your job with no bonus.
I'd make that bet all day long. Back in the day Wall Street firms were Partnerships and Partners Money was at stake

Those were the days! I knew what he was after I just got a kick out of the high upside/low downside, yet very risky.