IF......
If a barber makes a mistake,it is a new style...If parents make a mistake,it is a new generation...
If politicians make a mistake.it is a new law...
If a scientist makes a mistake,it is a new invention..
If a tailor makes a mistake,it is a new fashion...
If a proffessor makes a mistake,it is a new theory...
But If your boss makes a mistake...it is always yours...!!!