Harry Potter and the Goblet of Fire
At that moment, a wizard in plus-fours appeared out of thin air next to Mr. Roberts's front door.
"Oblivate!" he said sharply, pointing his wand at Mr. Roberts.
Instantly, Mr. Roberts's eyes slid out of focus, his brows unknitted, and a look of dreamy unconcern fell over his face. Harry recognizes the symptoms of one who had just had his memory modified. (7.27-9)
"The point?" said Mr. Weasley with a hollow laugh. "Harry, that's their idea of fun. Half the Muggle killings back when You-Know-Who was in power were done for fun. I suppose they had a few drinks tonight and couldn't resist reminding us all that lots of them are still at large. A nice little reunion for them," he finished disgustedly. (9.256)
"Well, the fat's really in the fire now," [Mr. Weasley] told Mrs. Weasley as he sat down in an armchair near the hearth and toyed unenthusiastically with his somewhat shriveled cauliflower. "Rita Skeeter's been ferreting around all week, looking for more Ministry mess-ups to report. And now she's found out about poor old Bertha going missing, so that'll be the headline in the Prophet tomorrow. I told Bagman he should have sent someone to look for her ages ago." (10.78)