Starting Tuesday, so right now, people are going to be struck with an inability to lie. All truths. They can choose not to answer, if you need them to. But they can not speak or write a lie.
In addition, they're struck with bouts of honesty. You can put this stuff private to only friends, or private to the character, but they are compelled to confess to things.
This isn't to hurt anyone's plot, only make some more fun. So, if there's a big secret that you need to keep secret, that's perfectly fine. They still have the strike out option, but they are compelled to share with people.
ALSO: Wand magic has gone wonky and the creatures are spreading out of the common rooms. Be creative people. And if I don't see at least one instance of a silencing charm gone wrong and a dorm full of people listening to someone wank, I'll be very, very disappointed!