ive never had them by themselves, although i had a sauce that was said to contain them but it was so damn hot that who knows. they are no joke, all bullshit aside if you eat too much it can effect your breathing and cause swelling in the throat, not the best pepper for a prank they rate up to over 1,000,0000 on the scoville scale(a unit for measuring heat) to put that into perspective a jalapeno on the high end can reach around 10,000 max, usally closer to 5,000. the ghost chillies usally come dried and used to be the hottest pepper, not anymore...

http://www.huffingtonpost.com/2012/02/16/worlds-hottest-pepper_n_1281449.html