I had a Fiat 850 Spider. I loved driving it, until one day, while taking my brother for a ride, we smelled gasoline. I pulled over, open the trunk and saw gas spurting out from the carb on to the red hot exhaust manifold. I say spurt, but it actually was flowing solid from a 1/4 inch hole in the carb.
We back away until I was sure the thing would not burst into flames. Turns out, the overflow hose is directly above the exhaust manifold. The pin that held the hose in place came loose, releasing the hose.
But by the grace of God, my name was almost changed to Sensei Burn.