1 Monty: Well, we send another telegram to Miss Thoroughgood.
2 Monty: At least this will give us another couple of days to wait for Sallah to arrive.
3 Prof Jones: I wonder what's taking him so long, anyway?
4 Caption: In Southampton:
4 Rail employee: Great Western Railway apologises for the inconvenience. Honestly, if you want to get to Tintagel, you're better off walking.

The railway is on strike, of course.

I thought to myself: What very British thing can happen to have delayed Sallah's arrival?

The answer came to me about 30 milliseconds later.