At first people are amused, Hermione's boggart seems tame. Simply Mcgonigal telling her she failed a test, but then it's her parents, and then it's Harry, then Ron all glaring accusingly asking why she isn't better. Hermione whitens and simply stares in horror as the faces blur together murmuring all of her darkest thoughts at her

"you failed"

"a failure"

"not worthy"

"you are a failure"

"you are nothing"

" you deserve nothing"

she sits with it for a bit, watching as the shifting faces of all those she cares for tell her she let them down, growing numb in shock. Then suddenly, anger flows through her, roiling and hot, She would Not let this happen. Ever. She would Never let them down, and she snarls Riddiculus at the Boggart and marches away before the spell has even struck.