This was pre sat nav and mobiles.
Might be a bit outing but it was years ago + couple aren't married anymore so....
Child no.1 (7) was supposed to be bridesmaid. The Tuesday before she diagnosed with appendicitis. We'd lived, one or the other or both, at the hospital with her. Definitely not well enough to be a bridesmaid.
MIL came to look after her, visit her in hospital etc on the day.
Went to wedding with our other 2 children. As we'd spent so much time in hospital we thought.....no food in house..... there's a Tesco next to the Church, we can go in there, have a quick shop, and still get back in time for the reception.
As we drove round the car park I thought I'd seen the best man + his partner behind us - but as we'd never met and had other things on my mind we parked and shopped.
Got to reception to join greeting line and sat down for the meal.
A couple of hours, way after the meal etc, later the best man + partner turned up complaining about getting lost and following a car they'd thought was at the wedding.
We sat quietly.
Child no.1 fine. Now late 30s. She was admirably philosophical about missing being a bridesmaid. 'At least I'm not dead"