Research metrics are fraught with danger. Usually they are dangerous when they are abused. We can measure the citation history of a paper but that tells us little beyond its citation history. We can measure raw output but that tells us simply how busy someone is. We can measure lots of things but they are all limited in some way. Measurement limitation does not prevent university administration from seizing on metrics and using them appallingly. I recently was informed of an Irish academic unit where papers published in journals that are not in the ISI Web of Science are not allowed to be used as part of any promotion or other college activity. They are un-papers. This is stark raving lunacy, but it shows how dangerous a simple metric can be in the hands of the ignorant.