Hapless Helpless Hopeless

Have you ever given someone a task to complete along with simple instructions and they still can't do the job?  I asked one of our part-timers if they could mail back an Interlibrary Loan book for me.  I gave them the mailing label, the envelope and the tape.  I went on about my business but what seemed like an eternity later, I looked over and they still hadn't put the book in the outgoing mail.  I literally had to walk over and show them how to open the envelope, put the book inside, seal the envelope, put the mailing label on the outside and put tape on it to tack it down and I even threw in a couple of staples to make sure the package was secure and placed it in the outgoing mail box.  They just looked at me dumbfounded.