Unfortunately the truck in front of me only moved forward 2 car lengths, and then suddenly stopped to make a turn. He did not have his turn signal on, but he stopped anyway. I was caught off guard.
Where do you live that somebody not using a turn signal "catches you off guard?" Where I am, in Washington State, you're lucky if half the cars on the road use their turn signals... it's not the kind of thing you can rely on for safe driving.
Also: I hope you got ticketed for it. The point of eating your fritter when it's safe is that it has to be WHEN IT'S SAFE! If you have your foot on the gas pedal, it's not safe. In fact by multi-tasking (putting the fritter down while attempting to drive forward) you were probably more dangerous to the truck than if you'd just held your fritter on the left hand and drove normally.