"The recall arises because, on rare occasions, microscopic metal particles in the recalled battery cells may come into contact with other parts of the battery cell, leading to a short circuit within the cell," Sony said. "Typically, a battery pack will simply power off when a cell short circuit occurs. However, under certain rare conditions, an internal short circuit may lead to cell overheating and potentially flames. The potential for this to occur can be affected by variations in the system configurations found in different notebook computers."
Not much chance of the effect being minor there. Well I’m sure that Sony (makers of the little sparklers) will make good and come up with a fix soon. Until then keep the battery out and keep your laptop on your desk if your not the gambling type.