This is what a Days Work looks like

#include <Stepper.h>

// change this to the number of steps on your motor
#define STEPS 100

// create an instance of the stepper class, specifying
// the number of steps of the motor and the pins it's
// attached to
Stepper stepper(STEPS, 9, 10, 11, 12);

// the previous reading from the analog input
int previous = 0;
const int buttonPin = 2;     // the number of the pushbutton pin
// variables will change:
int buttonState = 0;         // variable for reading the pushbutton status

void setup()
{
  // set the speed of the motor to 30 RPMs
  stepper.setSpeed(150);
}

  void loop() {
    static unsigned long lastButtonTime = 0;
    static boolean lastButtonState = false;

    boolean newButtonState = digitalRead(buttonPin);
    unsigned long currentTime = millis();

    // Make sure it has been at least 100 milliseconds since the last button change to filter out bounces
    if (newButtonState != lastButtonState && currentTime-lastButtonTime > 100)
        lastButtonTime = currentTime;
        lastButtonState = newButtonState;
        if (newButtonState) {  // Fresh button press
             stepper.step(3000);
             delay(4*1000); // Wait X seconds
             stepper.step(-3000);
        }
    }

Do I need to fully understand it?
Seemingly not once it works

The rats will be activating doors in no-time!