"Shut it, Blaise. So," Ginny started, "I could hear them all the way from Gryffindor Tower - they were arguing down near the trophy room. I think it was something about her chopping instead of cutting a potion ingredient and it made their potion expand like a sponge and overflow the cauldron onto the floor. I don’t know, but it must have been the last straw because they were basically throwing each other’s mistakes at each other like hexes. I mean, they brought up shit that happened when they were stuck together last semester in arithmancy. Something about a mistake on a rune that cost them first place in the class. Then it was about the time Draco tripped over the Venomous Tentacula in the greenhouse and landed on Mimbulus Mimbletonia which in turn invoked its defense mechanism and sprayed stinksap all over Hermione. You’d think they were holding up the entire wizarding world and one of them tripped and knocked the other one over and shattered society as we know it."