Harry Potter and the Order of the Phoenix
Umbridge did not answer; she finished writing her last note, then looked up at Hagrid and aid again very loudly and slowly, "Please continue teaching as usual. I am going to walk," she mimed walking (Malfoy and Pansy Parkinson were having silent fits of laughter) "among the students" (she pointed around at individual members of the class) "and ask them questions." She pointed at her mouth to indicate talking. (21.62)
"Dumbledore will be back before long," said Ernie Macmillan confidently on the way back from Herbology, after listening intently to Harry's story. "They couldn't keep him away in our second year and they won't be able to this time. The Fat Friar told me —" he dropped his voice conspiratorially, so that Harry, Ron, and Hermione had to lean closer to him to hear "— that Umbridge tried to get back into his office last night after they'd searched the castle and grounds for him. Couldn't get past the gargoyle. The Head's office has sealed itself against her." Ernie smirked. "Apparently, she had a right little tantrum." (28.2)
"You ought not to have meddled, Hagrid," said Magorian. "Our ways are not yours, nor are our laws. Firenze has betrayed and dishonored us."
"I dunno how yeh work that out," said Hagrid impatiently. "He's done nothin' except help Albus Dumbledore —"
"Firenze has entered into servitude to humans," said a grey centaur with a hard, deeply lined face.
"Servitude!" said Hagrid scathingly. "He's doin' Dumbledore a favor is all —"
"He is peddling our knowledge and secrets among humans," said Magorian quietly. "There can be no return from such disgrace." (30.208-212)