IMO, you say "aww, bless" and it'll all probably work itself out.
Most parents have at least one thing that most people would be
about don't they? Hey, my DDs (16 and 18) still basically believe that I have 'magic hands' than can fix headaches (started, obviously when they were 5 ish and the calpol wasn't working). That said, I haven't felt the need to write a book about it 
Really loving the difference in names though. One gets a single letter and the other gets 8 words? No issues being stored up there, oh no!