I suspect also that since we can't possibly remember everything that happens to us, we preferentially remember events that have some kind of significance. Sounds reasonable.

I used to have warts on my hands and feet when I was a kid. It wasn't bad, only one on a finger and two in a benign spot on my feet. But they were very persistent for many years. I never saw a faith healer, but they still fell off on their own one day, never to return again. I had actually completely forgotten about that until I read your message, likely because it held no significance for me. The coincidence of faith healer + warts falling off appears more significant that warts falling off with no apparent instigator.