It’s in the car park we bump into them. I stand back like the other man, before our wives can have a go at introducing us. He makes a business out of locking up their Focus and I bend down to tie my youngest’s shoelace. Then I see the second one is loose, so I go to undo it and tie it again. It’s hard to get the double knot in it to come free and she won’t keep her leg still. The other man has found a smudge on his wing mirror so he’s at that with a lick of spit and a tissue. His fa...