It's hard to explain but basically there was a few "inappropriate" words spoken considering it was in front of the whole school (wasn't just me btw, all the house captains) 
There was mention of the mysterious departure by a teacher who apparently (pretty much 100%) fucked a school captain, and also this choir teacher we had in year 7 who was creepy as fuck along with a few other inside jokes that may have crossed the line ahah
Also not the first time I've done this kinda thing (I had to give a speech to the year 11s on leadership camp of the cuff and I said that being a captain takes 0 commitment) so they were already on edge, but at the end of the day the year 12s loved it and we're done so fuck the system #yolo