Analyze the relationship between Emily and Toby?What is your opinion of Emily's servant?

Toby is an interesting character and we can't help but
wonder what he knew and why he stayed until the day of Miss Emily's death.  I think it
is completely reasonable to assume that Toby knew that Homer was dead in the bed
upstairs and perhaps even knew that Miss Emily went up there to be with the dead body. 
How could he not know that the horrid smell that had nieghbors calling for action was
actually coming from the upper floors of the house he was responsible for?  Then you ask
yourself why didn't he say something, do something, or just leave?  It must have been so
awful!  But alas, what would a black man in the deep South at the turn of the 19th
century truly have been able to do?  Report the death to the authorities?  He probably
would have been lynched by the end of the day either accused of actually committing the
crime himself or with having the audicity to accuse Miss Emily of such a horrific
crime.  If he ran they might have assumed foul play.  Toby doesn't have many options. 
On a more sympathic end, perhaps he felt sorry for Miss Emily in much the same way the
townspeople did, and couldn't just leave her to her own means.  He stayed out a sense of
duty and loyalty, much like the town does.  Either way, Toby is no fool.  He walks out
that door at the first chance he has because he does NOT want to be there when the
townspeople discover the remains of Homer in the attic.  Toby would have no answers that
would satisfy them and he would be in as much danger then as he would have been the in
the days it all happened.