Facebook's "On This Day" is an interesting way to surface things that I, or people who I'm friends with, have shared in the past. However, there are some memories that I'd rather not be surfaced. (A funeral, perhaps, or a friend with whom I've had a falling out.)
Is there a way to control which dates and/or people appear on "On This Day"? (I don't want to block people, nor avoid Facebook on a particular day.)