I'll Always Feel Bad About...............

In  my first year of work at NW Ayer, I got in to the elevator after lunch with a bunch of co-workers.  In the elevator was Cory, a boyfriend of a college friend from Stony Brook.  Now he was a messenger.  I didn't say hello.  Was it because I was a snob and didn't want to acknowledge someone I knew was a messenger?  Longest elevator ride of my lift up 39 floors.  Should have said hello.  He was silent too.  I'll always feel bad about that.