Scandal! Gossip!

Now I know it's Poisson d'Avril, but this is absolutely true ( and tickles my sense of glee. )
I live in an area of Glasgow where there are various kinds of social occasion, including concerts, Gal days and the like. Not every married couple equally like such events, so as we live in an enlightened and open society, one couple's husband could quite easily escort another man's wide to eg an art show, whilst the other halves went their own ways quite separately.
Nothing wrong in that... except... I'm a very cynical old King. As Reggie's CJ would say, " I didn't get to where I am today by being not cynical and eating pumice stone.."
There is one couple with an age difference of about 30 years. The lady concerned is a bit ditzy, but hey that's fine, she's nice looking, well dressed and quite cheery.
Her husband likes football, she likes concerts. So she goes to concerts - with another married man who is about the same age as the husband - a " walker".
And has done for years.
And being an entirely cynical chap, I've always thought they were at it like rabbits in spring. It is undeniable that a year or so into the " relationship" she had glammed up a bit more and had a silly smile on her face - as did the walker.
Time goes on, and the smiles faded.
Move forward a year or two. I happen to be in the doc's surgery today having the remains of my face removed - when lo and behold in comes the walker, muffled up, cap pulled down over face, coat turned up. He would have been unable to recognise me.
He goes to where the repeat prescriptions are collected, but finds his is not there. He whispers his name to the receptionist, who calls across to her colleague, " Has the doc not done Mr.Walker's Viagra prescription yet?"
You heard it here first.
PS
I have a running joke with a friend that I can tell when people have been at it - they have flashing signs on their head, which fade until they do it again. And the more they do it the brighter the sign.
So if you see a couple with one flashing sign but not over the other......