These Harry Hanrahan videos over at Pajiba are generally damn entertaining, but this one could be my favorite.
It's The 100 Greatest Movie Threats of All Time.
I'm sure many will argue over ones they loved that Harry overlooked or passed on. My personal favorite not seen here is from Miami Vice (a much better movie than anyone gave it credit for) when Jamie Foxx's Rico Tubbs claps his hands loudly next to small-time weasel Nicholas's ear and says, "That is the sound of air rapidly filling the vacuum created by your departed body."
By the way, I'll be out most of the day today. Feel free to threaten me.