Here goes nothing;

 Sam: Mr.Frodo, I have a confession to make.

 Frodo: What is it?

 Sam: well, you know how we're on Mt.Doom?

 Frodo: Yes...

 Sam: and you know how we're going to destroy the ring of power here?

 Frodo: Yes...

 Sam: you see, That's not the ring we left with.

 WHAT DO YOU MEAN?

 Sam: Well sir, beggin your pardon, but I sold it to this orc for some magic seeds, he said they'd grow so tall that Sauron would run away and never come back.

 Frodo: and you believed him?

 Sam: Not anymore sir, the seeds turned out to be rabbit droppings... So what do we do now? 

 There is nothing else for it...
 
Sorry, I couldn’t think of a better way to end it. But I'd just finished watching Monty Python’s: The meaning of Life.