Anders | Arcturus
It isn't that the advice is bad.
I don't want to summon a demon. I wouldn't. Or anything else. Summoning spells are...I got in trouble just for watching one once, because if they go wrong then probably everyone in the room dies. We've all heard the story of the summoning wizard who got his guts pulled out and other such horrid things.
But I don't care to have a muggle try to give me orders, and I care even less for the day of our ancestors being turned into...whatever monstrosity the shops are advertising. They wouldn't like it.