"Harry is going to be in a pissy mood, and will be looking to take it out on someone..."
Oh, my!! That is going to make life nasty for some one. My primary candidates would be Dumbles or Tom, though minions of either could suffer.
Author's response
A little to both, but sadly their respective minions will take the brunt of it. (it's early in the fic yet, just the evening of the first day of classes... Can't waste the bad guys before intermission...)