When talking about painkillers I think we should also think about how many have that pain. If it's too little, then that painkiller can be a distraction. So whi

When talking about painkillers I think we should also think about how many have that pain. If it's too little, then that painkiller can be a distraction. So while I fully agree with you that a distraction is not a painkiller, the opposite is not always true. Plus I think painkillers could definitely be just showstoppers. Once again, I find this subcategorization working great as a refinement applied to the @coffeemug's model. The only point is not to start with it directly.