It's amazing how much pop culture can influence us.
One note... of course they had to use the forbidden curses to yell at each other! They couldn't use "expelliarmus!", or "furnunculus". Naw, they have to use the curses that could take them straight to Azkaban.
I love the HP series, by the way. I couldn't put the 7th book down, and finished it within 24 hours.