An example of the zealous 'know-better'. Fortunately my calm exterior let the moment pass with a straight-forward rejection of what the restaurant manager had perceived as a better photograph to take of the bemused wedding couple.
Later I was considering a foodie response advice regarding the over-peppered chicken, but thought best left. We all have our own roles.
Worse, the SLR enthusiast guest. A distracting menace, who's purpose seems to un-wittingly disturb the natural bohemia of your routine. No malice as they have a big-bum Canon or Nikon which probably outguns your discreet Fuji, but what could be precious moments not recorded because it makes sense to tatter on about full frame, mirrorless, bob's your uncle knobs on the camera. Nah, best avoid the eye contact.
Then again a favourite these days for me is to 'nab the picture' from all the smartphone once photographed never viewed again random group shots. Let them set up the collective, all smiling with relaxed ease. Then barge up to the shoulder of the taker and boom you have a great group shot that no one had thought of until now. It's called cheating really.