No autonomous book reading, customizable

[Gwenke]

Could someone please make a mod to restrict book reading to sims with fun below 50%, preferably the 50% should be customizable? I have resorted to turn bookshelves towards the wall, or else all my sims will read through a party, the night, etc, even when there are plenty of other opportunities to raise fun.
It should be for AL / MG.
Thanks in advance.