Work Appropriateness or Lack Thereof

Ok so I've been working as a temp here in the beautiful Santa Barbara area for about four oh so fun months. The jobs have been boring, and lame but they pay me enough that I can get by (which isn't as easy as it should be in this pretty little beach town). Anyways recently I started at a new place, mainly just filing and scanning stuff. I'm pretty sure that my brain atrophies a little bit from non use everyday. Well I was sitting at my desk (a desk that was vacated because the man is sick and no one is really sure if he's returning or not, and apparently he was a pretty big slob so its also a mess) and I needed some post-it notes, so I started looking through the desk. Well I open one draw and what do I find but four catalogs of porn! I quickly shut the door and giggle to myself, and of course call up A and tell him what I found. I don't want to tell anyone because the poor guy id sick and I don't want him to get into trouble, but it also seems really icky to be there at work. I'm all for porn but it seems like its more of an at home activity, not appropriate for work.