Musings on discrepancies/anomalies (?)

[D.G.]

No: HPFGUIDX 68910

These are both brief, so I'll stick 'em in the same post (if that's 
okay) --

1.  I'm very surprised that entering someone's private memories via a 
Penseive isn't a very serious violation, punishable by expulsion.  
Dumbledore didn't even PRETEND that Harry had done anything wrong 
when Harry plunged into his memories, and even Snape kicked Harry out 
of his office rather than threaten to discipline him (granted that 
since Snape had been charged with tutoring Harry, he might not have 
been able to carry out that threat.

     All in all, it seems that plunging into a Penseive and observing 
someone else's private memories is not a punishable offense, or at 
least has never been defined as one.  Isn't this rather strange?

2.  Maybe I'm misunderstanding somethinng -- but according to Snape's 
own memories, he took his exam parchment out of the classroom and 
continued perusing it underneath a tree, as his classmates hung 
around nearby.  How could this be?  I thought all parchments were 
collected after the exam time was over.