Bah, the Opera joke has been got to already.
Okay, how about
:
Sam, Pippin and Merry scream as they are Sent to Mordor.
Or...
When Dominic Monaghan showed Sean and Billy his splinter, they jumped screaming and fighting not to vomit off the boat.
Or...
Sam: THERE! I told you to stop that annoying voice and now you will!
Pippin: My Teddy!
Or...
Sam: You call dat'a jump? What, for nottin' I train you and you can't mak-a da simple jump onto da raft?
Pippin: What is
wrong with you, man?
Or...
Sam: Look, I'm telling you, it's got wings!
Pippin: No! It can't be true! NOOOO!!
Or...
Trying to catch flies in their open mouths was always a popular pastime with drunken boating hobbits.