One month after my surgery - sometime in September 1991, I thoroughly embarrassed my daughter, and had a major part in mortifying a lot of her classmates, when I took her to a father/daughter dinner at her school. I think that one of the fathers noticed my still healing scar, just peeking out above the top button of my shirt. I told them that I'd just had my OHS, and that it had only been a month.
At that point, one father after another, opened HIS shirt, to show HIS scar. There must have been five or six of them - probably not all valve replacements, possibly coronary bypass surgeries, possibly something else. But having a group of fathers, all opening their shirts, and all looking at each others' scars, must have been a quite memorable - and at the same time quite forgettable - event for these young girls.