Sometimes in the company of others I find a disagreeable spirit of competitiveness kicks in and each person is shamed into spending rather more than he would have wished. This is a historically established syndrome, of course. One Magus going to Bethlehem would probably have sprung for a box of After Eights. Three Magi on the same trip found themselves laden with gold, frankincense and myrrh and bitterly comtemplating their overdrafts.