Replacing a ceiling fan... turned off all the breakers but electricity is still flowing... if the light switch is off can I still get electrocuted doing the wires?

replacing a ceiling fan....turned off all the breakers but electricity is still flowing....if the light switch is off can i still get electrocuted doing the wires?

If all of the breakers are off the circuit should be de-energized. If all of the circuit breakers are off in one panel there may be a sub-panel somewhere or the person may have illegally taped the circuit from the main. Turn the Main breaker off then it should be dead. If the Switch controlling the fan is off the circuit should be dead if it is wired correctly. Make sure you use a voltage tester before you touch any wires.