根据输入的文本生成一个新的段落，与输入的主题相关但不完全相同。
《哈利·波特》一书中的其中一段描述：
"Harry was particularly keen to avoid trouble with his Muggle aunt and uncle at the moment, as they were already in an especially bad mood with him because he had received a warning letter from the Ministry of Magic the evening before, telling him off for using magic in front of Muggles."
In the Harry Potter series, the wizarding world is separated from the Muggle world, and magical people must conceal their abilities from non-magical people. This can often cause problems for young witches and wizards, who may accidentally use magic in front of Muggles and risk punishment from the Ministry of Magic. Harry Potter is no exception, and in this particular moment, he is trying to avoid getting into any more trouble with his aunt and uncle, who are already upset with him for using magic where they could see.