Well - he might be second-guessing himself too, right? I mean nobody comes to BB8 with past experience. Everybody is touchy-feely-ing it out there. So there would be a tendency to hesitate even after casting the dice and moving the pieces...
Plus I think he's one of the few people who can use his brains to analyze what Salman was saying...
If he had a brain most of us have given him credit for till last week he would have accepted his mistake and started working today. Instead he told sallu he is right and still not working today !!!!