Found. Justin (or someone else) finds out why Brian hit Michael at the beginning of season 3

[laurapop2008]

This is quite a specific request. I checked the tags but I wasn't really sure where to look. Does anyone know of any fics where Justin, or one of the gang, finds out/overhears what Michael said to Brian at the party to make Brian snap? While I don't ever think it's right to hit anyone, I did kind of sympathise with Brian being demonised (yet again) when Michael had said such a horrible thing. I do remember reading something a while ago where everyone else found out what he'd said, though I have no idea what it was because I'm awful at distinguishing one story from another and don't pay much attention to titles or author's names (I'm terrible, I know). Even a passing mention of someone else knowing the reason for the punch would be great. Oh and it doesn't have to be set in season 3, it can be later.

Thank you so much for any help any of you can give me and a big general thank you to anyone who helps out in any way in this community :)

Edit: Some found, but more are always welcome. Thank you everyone :)