Nagini: If she's not a Horcrux, what the heck is she?

[drax_orion]

No: HPFGUIDX 172030

<snip>
> Lisa:
> So there was no malicious intent on Harry's part ... no "intent" at 
> all, truth be told, no matter how Harry categorized it later.  He 
> didn't "set" the boa constictor on him anymore than he "made" his 
> hair grow back after haircuts.

Drax:
Ah, but there was intent, it just wasn't conciously done.  Harry's
subconcious was what controlled his magic and in hindsight Harry was
able to identify that he actually did set the boa on Dudley. 
Remember, the books are written from Harry's POV, so at the time of
the incident we knew as much about it as Harry did, which was next to
nothing.