Okay, here's a Zonk from the episode of 'Doctor Who' that kicked off this latest season.......
When the Silent zapped Joy in the White House bathroom (That sounds so dirty!), she was reduced to flaky scraps that looked like charred newspaper. She was nothing more than a scattered pile of ashes on the bathroom floor.
Seconds later, we see that bathroom floor from a different angle - and now the floor is clean.
I don't think a cartoon cleaner bot came out of the wall and swept it all up to the strains of Raymond Scott's "Powerhouse". So what happened to Joy?
Were we watching this scene during one of the many temporal reboots to the Universe?