this is mind boggling, and you can definitely have some fun with this!
Author's response
Thanks Jabarber, and yep, I sure intend to do my best.. I had an idea pop into my head earlier today while reading a fic and thinking how I'd like to have responded if I'd been Harry. Then I figured this was something I could have Bruce advise Harry on.
How about this? Bruce is telling Harry basically to stop being so wussy and live up to his potential - using the crap he takes from Snape as an example. Deciding to give him a practical demonstration of what he's talking about, he sets up the Room to mimic the Potions classroom, (just like running a holodeck program), and takes on Harry's appearance and role in the 'program' (leaving Harry to watch from the side). Then when Snape starts his usual 'pick on Harry' routine, Bruce responds.. :)