Why is the bathroom so important in Potterverse?

[Xandersgirl18]

No: HPFGUIDX 47513

Hey all!

I normally just lurk, but I was just thinking about this the other 
day and I had to pose it to the group. 

Why is the bathroom so important in Potterverse?

Many big things have happened in the bathroom...

-A Troll attacked Hermione in PS/SS
-Moaning Myrtle haunt a toliet in CoS onward
-The Polyjuice Potion was brewed and kept hidden there in CoS
-The entrance to the Chamber of Secrets was in a bathroom
-Harry figures out the second task in the prefect's bathroom in GoF

Am I missing anything else?

Any interesting theories? 


Susan :o)