Memories and the story of how I might be losing my mind

Today I had a very nice phone conversation with my dad about books we've read, are reading, and want to read. He recommended a book to me by a guy named Peter S. Beagle. He then told me he had given me a book of stories written by Beagle when I was younger and that I had read the first one and been disturbed. Apparently he had never intended for me to read that one (a likely story) and he had really been more interested in my reaction to stories later in the book. What I don't understand is why I have absolutely no recollection of this. I don't remember Peter S. Beagle. I don't remember my pop not only recommending a book (which he does fairly regularly) but also providing me with said book (which he does less often). I even looked up the story which had supposedly turned me off of the book entirely and I didn't even spell the title correctly. Is this real? From the timeline we were discussing, this would have happened while I was in high school. I should definitely remember something like this; it happened less than ten years ago. I'm angry at my own mind for not filing this away in some safe place for me to come back to later. Why don't I remember?!?