How to change a light bulb.

Normal way.

int change(bulb) {
  double price = 4.9999;
  double myTime = 10000.002;
  
  take_bulb_out(e-);
  let_cat_play_with_bulb(bulb, e-);
  place_new_bulb_in(bulb);
  
  losses = (cat * price) * (cat * myTime);

return losses;
}

Proper way...

int checkBulb(bulb) {
	if (bulb.off === true) {
	     if (bulb.hot !== true) {
			 if (bulb.maybeBurntOut === true || bulb.maybeBurntOut === false) {
			      if (bulb.burntOut === true) {
					 return true;
				  } else {				  
					  cry(self);
				  }
			 }
		 }
	}
return false;
}

double takeNotes(bulb, self) {
	return bulb.wattage;
}

double goToCar(bulb.wattage) {
	go_to_store(bulb.wattage);
}

void go_to_store(bulb.wattage) {
	return; // Ah, great...
}

double go_to_store(bulb.wattage, true) {
	return newBulb;
}

void replaceBulb(bulb) {
	return; // Yay...
}

....