Hermy helps out poor Neville

This does not look like my Hermy, or my Neville. For a start, my Hermione has a kinder face, and both of them are chubbier. I only uploaded this because I like the cauldrons- how cute! As if they would each have to lug a massive cauldron to class, like in the games- no, then where would Snape dispose of all 5000L of potions made?

Actually, I noticed that in the 5th book, I think, Snape magicked away the contents of Harry's cauldron. Does this mean that the wizarding world doesn't need sewers, if they can make liquids just dissappear?