That will surely get your attention. Had the same exact thing happen to me last summer with my granddaughter on board.
The fuel alcohol or age of the fuel lines had caused a split. Found a split in the portion of the fuel line between the carbs. Fuel leakage under the cowl, can sure go BOOM when you turn the key.
Alcohol in fuel is often blamed for fuel line degradation, causing carb or injection issues. We replace exterior fuel lines, bulbs, and add fuel/water separators to compensate. Because of my own experience with fire onboard, I have replaced every inch of fuel line under the cowl. And now check fairly regularly for any softening of the lines under the cowl.
Regret not posting about the experience now after hearing this news. Might have saved a head thump, or worse.
Check the little short runs of fuel lines under the cowls folks. Two of us have been real lucky. Fire on a boat is one of those things you don't want to have experienced.
I'm required by vessel length to carry 2 extinguishers, but carry 3 due to the pucker factor that is still etched into my brain. Bow, stern, and console. And I make sure that they are accessible quickly, mounted in full view, and not in the bottom of a storage compartment. Believe me, they are not just on board to satisfy minimum safety requirements in case you get checked by your local wardens.
"Hello, My name is Bill, and I'm a tackleholic"