One of many gag gifts my father received for his 40th birthday was a rubber hose with a lighter at one end. The other end was to be inserted in your rectum, the idea being that the methane gas you produce naturally could be used to light your cigar.
Even though it was a joke I still thought it wasn’t a bad idea, and I’m sure I’m not the only one who’s thought that the methane that cows produce is an untapped power source.
