Minecraft 1.4.5, Snapshot 12w50a, Minecraft 1.4.6, Minecraft 1.4.7, Snapshot 13w09a, Snapshot 13w09b, Snapshot 13w09c, Minecraft 1.5
Latest Release of Java
Putting down a boat, throwing an Ender pearl, and getting in the boat before the pearl lands causes damage to you but doesn't teleport you.
Note that you cannot throw an Ender pearl while sitting in the boat or minecart.
Also works with Minecarts. It damages you but you don't teleport.
This might have been around for a while, but searching for it didn't return any results. So I posted it.