I'm saying that if someone really doesn't have the ability to influence outcomes of personal interest, then it might really be senseless to make plans or worry about acting coherently. Someone might have an internal locus of control with respect to a slot machine, believing that their timing and bar-pulling-technique actually matter, and try to do statistically significant studies on which technique is best.

Maybe the person would discover a broken slot machine and discover how to game it? Its possible. But mostly they would just be crazy.