A bad man always blames his tools?

the origin of this is to be found in the 13th Century, possibly French. 'A bad workman will never find a good tool' In 1640 the quotation was 'never had ill workmen good tools'

a bad worker blames his tools as to hide his faults

It is an expression used to describe someone who fails to accept responsibility. They blame something or someone else instead of admitting that they are at fault

This proverb means that a person attributes his failings or shortcomings to the actions of other people instead of attributing them to the person who is ultimately responsible for our actions -...

like a child did not completed his test because he did not prepared for it. When it is the time to submit the papers he will say that my pens ink was finished so i could not complete it.