Strangely enough...
this reminds me of an experience I had. When the Catechism came out, my diocese sponsored a daylong conference on it. It took up half of the building, while the other half was occupied by ... a tattoo convention. Let's just say that lunchtime, held at the facilities in the middle, was an interesting mix. (And I've never forgotten the lady I spotted in the restroom... the one whose open-backed dress displayed a truly spectacular Chinese dragon running all the way down her spine....)