Cayenne Pepper. Not even hot.
 
Habaneros. They tickle. A little.  
 
But Bhut Jolokia. That’s where the real heat is. Chile heat!
 
Also called red naga, naga jolokia, and bih jolokia. But this hybrid chile from India is one of the hottest around. No wonder it’s garnered the name most know it as … Ghost chiles.