Malcolm tests macduff by telling him all the things that will make him a bad king. How does macduff respond? what does this indicate to us about macduff's character

Macduff painfully tries to accomodate Malcolms self-slander. He points out there are plenty of "willing dames" in Scotland to have sex with and more than enough money to take as he pleases. Macduff, however, has his limits. He won't let Scotland be plunged into Hell, he won't tolerate another Macbeth. This tells us that, although Macduff would be loyal to his King, loyalty to one man has its limits. Fortunately that's just what Malcolm wanted to hear.