I've heard about this before, but have never been convinced there's not a logical reason for it. Reading this report today it sounds it could be feasible. Time to stay off the gin, what?!
http://www.dailymail.co.uk/news/article-2041099/Spontaneous-human-combustion-Galway-OAP-killed-Irelands-recorded-case.html
Strawbs
http://www.dailymail.co.uk/news/article-2041099/Spontaneous-human-combustion-Galway-OAP-killed-Irelands-recorded-case.html
Strawbs