Yes, I have done that many times too. It is about like when I get in the car, pop on the streering wheel, button up all the harness points, hit my toggles, pump the carb, & hit the ignition... and nothing.
I FORGET TO TURN ON THE BATT. CUT-OFF SWITCH TO THE "ON" POSITION ON THE BACK OF THE CAR!!! (AGAIN)!!
Man, I hate that!!