I have a funny story., a few decades ago I was traveling with an ex-girlfriend on a AA domestic flight -- LGA-MIA ) We were in Y. ( It was our first long weekend trip)
I was offered one F seat and of course accepted it right away and gave it to her, But she did not want it as I was the elite member!.
She held her ground ( of course this was a less than 2 minute discussion, as we were about to board ) So, I grabbed a quarter out of my pocket and yelled heads or tails and tossed it up!