In a recent issue of The Tablet a well-intentioned article exhorts priests to preside at liturgy with liturgical sensitivity and pastoral care. A sentiment to which we can all mutter a pious “Amen!”But in developing his case the author speaks of the priest acting “in persona Christi capitas.” Surely you presume (as did I) a regrettable lapsus on the part of the venerable weekly’s copy editor.Reading further, however, one comes upon the suggested complementarity of capitas and corpus — and doubt begins to darken the brow.The case is sealed with a rousing flourish of ex opere operanto.Ubinam gentium sumus?