Hartley had a stint in the sin - bin for fighting with Cardiff Blues hooker Gareth Williams on his last trip to the Welsh capital in December .
This time Hartley is determined to make a mockery of Gatland 's comments .
Hartley had a stint in the sin - bin for fighting with Cardiff Blues hooker Gareth Williams on his last trip to the Welsh capital in December , but this time he is determined to make a mockery of Gatland 's comments .