Ohhh... Hagrid is not going to like this, not one little bit!
The only way they could numb themselves to the pain of Harry's memory was to drink it away.
Snape would be flattered momentarily and then dismayed that you used all your useful studying time building shrines to him.
You guys I'm really sad that Harry Potter everything is coming to an end right now. (Until JK Rowling writes a prequel or something.) But have heart! Rowling's childhood home is up for sale! You can hide under the stairs and reread all the books to your heart's content!