Just an inkling about boggarts (spoiler material here)

[incognicat]

 I've seen people wondering why Pavarti thought the clown was funny 
versus the boggart/snake.  Pavarti's clown is pretty freaky, but I 
think it's the clown from the sweetshop in Hogsmede.  When they pan 
across the shop, it's sitting in a glass case in the middle of the 
floor.  So MAYBE that's why she thinks it's funny.  It creeped me 
out more than the dementors though.  Heh.
 
 ~Kat