For instance, your friend is telling a joke but is interupted.  Your friend continues, and is interupted once more in the same spot.  You’ve heard the set-up of the joke several time now, and you’re thinking “Is this story worth it”

Or you have something to tell someone and like an idiot you tell them you have something to say.  So they go their entire day wondering what it is.  Perhaps they even ask you, but you can’t say because other people are around.  It’s nothing really, but now this person has been waiting to hear your something the whole day.

Just tell me already!  I want to talk, I want to know.  That way things can progress.

You’ve built this up, buddy.  It had better be worth it.