I'm wracking my brain here,,because I was thinking about that number 3 last night,,with seeing it in Alias's post,,and something suddenly came into my mind ( which I should have immediately written down ) and I'm blowed what it was that I thought the significance was,,but it was worth a thought.
I'm due to have my yearly test for dementia

-oh dear. It's not so much that I forget,,it's other things in my mind that take over.

That's my excuse anyway !