'Real Money' Radio Wrap-Up: Take the Money and Run

One of the worst things you can do after you win is to start losing. The worst thing is to give back all your spoils, Jim Cramer told listeners on his "RealMoney" radio show Thursday.

Cramer related a story about a visit to a casino with his mother 25 years ago to illustrate why he changed his thinking on oil this week. They had won $100 by 10:30 a.m., at which time his mother led her protesting son out of the casino and bought a $100 sweater. She wore it for years.

"I got a lifetime's worth of financial knowledge out of [that situation]," Cramer said. "We had gambled, and we had won. Worth a gazillion sweaters."

Whether gambling or investing, discipline is discipline, Cramer said. "I came to play and to win. I believe to say that oil could double, to say that oil could go from 5% to 10% of the S&P 500 over a couple of years, and then to have that happen, and to then keep pressing after you have won, seems foolish."

Cramer mentioned Jarden(JAH Quote), a small appliance maker.

"It's better to be lucky than good," said Cramer. "I think Jarden is about to get real lucky." Cramer noted the company is in a war for shelf space at stores like Wal-Mart (WMT Quote) with its two competitors, Applica (APN Quote) and Salton (SFP Quote).

Cramer says because Applica and Salton have overextended themselves, they're at risk of going bankrupt. Wal-Mart will likely be concerned about those two companies' ability to deliver products in time for Christmas.

"That means that even if Jarden just stands still, it wins," he said. "It doesn't need to be wide-eyed and grow the business by leaps and bounds. It just needs to show up. And show up it will."