Another one of those Work Things...

So, one of my co-workers has been gone for the last few days due to a death in the family. I really am still learning the "lay of the land," and was checking out what files were in the two filing systems she had shown me. When I opened the top (what I thought was a) drawer, I found a bunch of personal items, including a pint of Bacardi Gold (opened, but not much gone). Should I be concerned that her job drove her to drink?? I'm just also curious why she kept alcohol in an unlocked filing cabinet that she knew someone else shared...