If a barber makes a mistake, It's a new style...
If a driver makes a mistake, It's an accident...
If a doctor makes a mistake, It's an operation...
If an engineer makes a mistake, It's a new venture...
If parents makes a mistake, It's a new generation...
If a politician makes a mistake, It's a new law...
If a scientist makes a mistake, It's a new invention...
If a tailor makes a mistake, It's a new fashion...
If a teacher makes a mistake , It's a new theory...
If our boss makes a mistake, It's our mistake...
If an employee makes a mistake, It's a "MISTAKE"!!!

From: http://www.anvari.org/fun/Job/Mistake.html