Did Harry ever shed tears ? Phoenix animagus perhaps ?

[samnanya]

No: HPFGUIDX 80518

My pensieve sprung a leak and a couple of stray thoughts snuck out ...

Does anyone remember an instance where Harry actually shed tears in 
any of the books ? Even DD did, but no memory of Harry doing so.

Wouldnt it be interesting if Harry could be an animagus in the form 
form of a phoenix? Is this possible o cannonites and, if not, why
not? 
 
It is also clear from CoS that Harry can {whether he knows it or not} 
summon a phoenix when in trouble just like Dumbledore can.  I wonder 
why he hasnt done so more often ?
 
What if someone who is not related Harry {or whomever} by blood 
sacrificed his life for him ? Is there any special charm or shield 
generated by this sacrifice or must it be through a blood relation?
 
if werewolves are so dangerous why was one recuperating at St. Mungos 
in OOP, seemingly unguarded ?

Lots of references to dead things and silver  - Moaning Myrtle, 
Wormtails hand, Unicorn blood, .... any relations to vampires or 
whatever ?

In CoS, when Ron and Harry took the polyjuice potion and ran into a 
Ravenclaw who turned out to be Percy's girlfriend Penelope Clearwater 
(pgs 219, 258 us ed) coming out of the entrance to the dungeon where 
the Slytherin lurk ... uh what was she doing there? If she wasn't 
Percy's girlfriend I wouldnt have given it a second thought ...  

And my ultimate never got an answer to post --- Does anyone care that 
Luna was NOT on the Hogwarts Express at the end of OOTP ???????


Now that these thoughts are out of my pensieve and back in my
brain,., 
I am getting a headache which i will probably have until someone 
addresses these issues. My apologies if i missed something obvious.

Thanks
Sam