Hagrid's Wand and the M Map (FAQ Critique)

[prefectmarcus at yahoo.com]

No: HPFGUIDX 23414

I have just finished pursuing the FAQ.  My hat is off to all those 
hard workers.  I am very impressed.

Two topics sprang to mind while reading them.

*Hagrid's Wand*
Why can Hagrid do magic with his umbrella holding the pieces of his 
wand but Ron can't with his broken wand?

I can't remember what Hagrid's core was but unless it was Phoenix 
feather, it likely would not be very brittle.  So when they broke it 
or "snapped" it -- I believe he tells Harry -- the oak would break in 
two, but the core would likely be undamaged.  

Now if Hagrid were to place that core inside of the shaft of his 
umbrella, he would have essentials of a wand -- ie: an unbroken casing 
of wood and magical core.

Ron's broken wand had a broken casing, and I think the core might 
have been damaged as well.  That is why Hagrid's pseudo-wand worked 
and Ron's didn't.

One more thing -- True, we are not told that Hagrid got a new wand 
after CoS, but we weren't told he didn't either.

*Marauder's Map*
How do the dots work?  I have always assumed that only people who are 
moving, pacing, jumping, struggling, etc. show up.  If you are simple 
sitting or sleeping, you don't show up.  I can't remember anybody -- 
Harry, Lupin, Snape, or Barty Jr. -- who saw anybody being still.

Marcus