[Irene Adler]

BTW, one more claim is that the Emery cleaning crew threw out a lot of the author's damaged notes. I teach in a university. Cleaning crews in universities are taught NOT to throw away anything that is not either in a wastebasket or shredded.

Too many professors are messy and leave papers around all over their offices that they intend to keep, for the cleaners to decide to throw out miscellaneous stuff from offices without express permission such as a note on a pile of papers plainly saying "Cleaning Crew: Please discard".

This is a pretty common rule in universities.

[Hagrid]

Exactly, the cleaning crews would not have tossed the contents of stuff damaged in a flood, when a drying out program was immediately put into effect.

Also, he previously said that he carried all his notes to his attic at home--that he did not intially toss them out.