60-Miniutes host Mike Wallace, recently denied a second interview with Miami running back Ricky Williams, was in the Dolphins training camp yesterday asking some Mr. Williams some tough follow-up questions. Wallace even had Williams watch a clip from the televised interview Williams had granted him last December, in which the running back bet him a lunch or dinner that he would never play football again after walking away from the Dolphins before last season. "Lunch or dinner? Well, I work, so I'll say dinner," Williams quipped when reminded that he lost the bet. "I have a job now." "I realize that my concept of freedom at the time was a little off," said Williams. "I was sitting at home last night and thinking if there was any place in the world I'd rather be or anything I'd rather be doing, and the answer was, there was nothing.? "I've got to the point where happiness doesn't come from the outside. Whether I was back in California or whether I had $10 million, whatever I was doing, it wouldn't make me happier than I am now."