Filled up the tank and was surprised it was taking more than the usual 9 gallons. Kept going and going to about 9.7 and I quit. When I took out the hose, gas started flowing out of my gas tank....flowing and flowing. I waited till it quit, then put on the gas cap. Seems like I recall reading on the forum of someone having problems after topping off their tank. What kind of monster might I have created now?