HELP!!!

Four years ago I committed a single act of graffiti in the Rutgers Engineering building.  In pencil I wrote a message on the top of a display case.

As is clear from this picture it is still there.  For those of you who need glasses.

Help I am Stuck in A Display Case.

The thing I find surprising is that no one has let the poor guy out of the display case.  Also, if he was inside the case how did he write on the outside, I guess only those of you who read this will know.