We had someone offer to donate his library to us on his death. (Okay, maybe...)
He would also provide a bookcase for the collection. (Yay, no extra shelving costs - as long as the bookcase meets our standards.)
The bookcase would be locked for the safety of the books. (Um, hold on a minute...)
Only approved people (like the nice young man who was his doctor - he was good with books) would be allowed to peruse them. (We have now reached "No." territory.)
The donation was tactfully declined, with the explanation that we are a public library, we do not have restricted collections, and we do not have funding, staffing, or desire to being administering a restricted collection.
I wonder if the nice young man who was his doctor ended up inheriting a small library...