Foreshadowing of book 6 in PoA

[rowansjet]

--- In HPFGU-Movie at yahoogroups.com, "Diana" <dianasdolls at y...> wrote:
> As I was watching PoA the second time, I paid special attention to 
> anything that might be a possible foreshadowing of future events 
in 
> book 6.  Most are probably not important, but as we won't know 
which 
> are and which aren't until the release of book 6

> Diana L.
> dianasdolls

Here's one:

Ron's dream about the spiders wanting him to tap dance.
In GoF, Crouch/Moody uses the IMPERIO CURSE on a SPIDER and makes it 
TAP DANCE! Could this foreshadow someone using the imperio curse on 
Ron?