Sometime mistake is good, see this

If a BARBER makes a
mistake,
it’s a new style. .
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 a STUDENT makes a
mistake,
it’s a “MISTAKE” .
This iz cheating…