I try the Hottest Burger In The World from the Off The Wall Gourmet Burger Diner at 386 Main Rd, Wellington Point, Brisbane, Queensland, Australia!
The main hot ingredient is Blair's MegaDeath Hot Sauce, which is very hot.
You have to sign a waiver before you attempt this very hot burger.
They have a challenge. If you can eat the whole burger without drinking anything, then you can have your name printed on their wall. So myself and some friends tried this burger, and yes it is hot.
So if you are in the area, please try this burger, and get your name on the wall!

Hotness Rating In Scoville Units!

MegaDeath Sauce :
5,500,000+
USA Police Pepper Spray :
5,000,000
Dorset Naga Pepper :
923,000
Red Savina Pepper:
350,000 - 580,000
Scotch Bonnet :
100,000 - 325,000
Jamaican Hot Pepper :
100,000 - 200,000
Rocoto Pepper :
50,000 - 100,000

See the Blair's MegaDeath
Sauce is Extremely Hot!

Here is the waiver you have to sign before attempting this burger.
http:i683.photobucket.comalbumsvv197GrahamBris2009megadeathburgerwaiver.jpg