Dear 100 Hour Board,
If you make a big boom and then you're clear of the stall so there's no evidence you were just in there and then on your way out or while you're washing your hands you see someone else come in and head right for that one do you:
#1 say something
#2 just high tail it out of there
Dear Fred and George,
Please refrain from placing any further Weasleys' Wildfire Whiz-bangs in any school lavatory, if you value in the tiniest amount your pitiful lives academic standings.
/\_/\ ( o.o ) > ^ <
|\---/| | ,_, | \_`_/-..----. ___/ ` ' ,""+ \ sk (__...' __\ |`.___.'; (_,...'(_,.`__)/'.....+