According to this article (
http://66.218.69.11/search/cache?p=%...p=1&.intl= us ;
http://www.thecharmedones.com/castingspell.htm ), when McGowan first started on "Charmed" she experienced an ENF-style initiation by the other cast members: "When I started they 'pantsed' me, stole all my clothes and locked me in my trailer naked." I doubt that any photos exist though.