[Hm... something better than a simple pun. Unfortunately, Jokes really require timing, which is difficult over text. John switches over to audio. His voice is nasally, but his accent may be generally familiar to a fellow Londoner.]

Right. How about this?

After dying in a car crash, three friends go to Heaven for the standard orientation. They're all asked the same question: 'When you're in your casket, friends and family all round to mourn you, what would you like to hear them say about you?'

The first bloke is quick off the mark saying, 'I'd like to hear them say that I was one of the great doctors of my time, and a great family man.'

The second bloke takes a little longer, but he comes back with, 'I'd like to hear that I was a wonderful husband and school teacher who made a difference in our children of tomorrow.'

The last bloke, he has to think a good long while, mulling it over. He'd never really thought about it, of course. Finally, he lights up: 'I'd like to hear them say... Oh, god! Look! He's moving!'