If a king suspects his fool's tongue is made of silver, wouldn't he be foolish not to have it out of him?

And as for protestations of helping young Weasley, I am curious: What is it to you if he has been jinxed? For what unctuous purpose do you wish him your friend? Or are you seriously suggesting that even in your lowly position, you may sympathise - even more: Pity a rightful wizard?