From Redditor u/plentyofeight:
I say to my wife the international space station is going over tonight, it's a clear sky, and we agree to pop out to the country where there is less light pollution and take the kids who were 12 and 8.
We park in a field gate and the youngest boy sees it first
We watch and it goes overhead... and then splits in two.
We watch it, I am thinking has it broken up or something?, the two parts slowly move apart.
We are puzzled, I drive home and thinking any disaster would be on the news, so I watch that.
Turns out, the final shuttle mission had just been completed and we had watched shuttle Atlantis depart the ISS for the final time.