Harry: You rolled your eyes at Umbridge when she told you off for chewing gum.
Ron: You took a nap on the common room sofa and woke up after school hours had ended.
Neville: You kicked Draco in the shin because he was rude to Neville.
Draco: You were gossiping really loudly in herbology and the teacher heard.
Cedric: you couldn't answer a question in snape's class and he got annoyed.
Dean: You left your homework on the table in the great hall and forgot it.
Seamus: You were 30 minutes late to charms because you were taking a nap in a broom closet.
Oliver: You yelled at a girl who was flirting with Oliver during class.
Fred: You threatened to get your parents to fire Umbridge.
George: You helped him prank Snape and got caught.
Tom: You were in the restricted section past curfew reading.
Newt: You punched a guy because he touched you.