I'm not sure but in the DADA's exam at the end of the year didn't she have to get into trunk with a boggart..??? Or was it something ..?? Anyway, she fails and they have to let her out. She comes out crying and saying that... was it McGonagall???... was telling her she'd failed everything. Someone with a copy of PoA handy, can you look this up for us please??? But I reackon that she saw a teacher telling her she'd failed all her exams is what Hermione sees.