If a child tells one version of events and an adult tells another version of events, I think people automatically think the child is lying. A situation like this has come up at my DD's school, during a private music lesson, so only my DD and the teacher were there, so only they know what went on (nothing bad).
My DD is rarely dishonest and there's no reason why she would lie, as it's not something she would have got into trouble for.
Anyway, I think now that people would think that my DD is not telling the truth and I don't think that's fair.
Are you more likely to believe a teacher's version of events or your own child's version of events?