Oooooh...

No...

Forrest gulped hard as he finally registered the full meaning of professor's instructions, and sank further in his seat in an attempt to hide back behind the tall over in front of him. He was so flushed with embarrassment that his face's colour matched Gryffindor's red. But of course! He was an idiot--the biggest idiot on earth! Of course they would brew potions with these! He slapped his forehead harshly that it echoed in the dungeon and tried not to make eye-contact with the lady. Panic had started to rise in him, and even if his ingredients were of any good, he was too dumbstruck to find it in the book.

So, sittting as lowly as he could, he just tried not to panic and hide behind the tall people in front.