"Doctor," Michael Yates burst into the laboratory, "your car tyres got punctured. I don't know how — it was in the garage, locked and under the guard."
The Doctor frowned.
Indeed, Bessie had all the tyres punctured. They were already being replaced, but the fact was still there — someone had managed to do that. And most importantly, why?
"Maybe it was revenge?" Jo asked thoughtfully.
"Revenge?"
"Well, yeah."
"Who needs to take revenge on my car?"
"Well, not on your car, but on you, perhaps?"
"But it weren't mine tyres punctured, right?" the Doctor snorted, patting carefully Bessie on the hood.