" I take back everything. They're no Hufflepuffs! Really, I officially renounce my previous statement. I didn't mean it like that." Well, since you officially renounced your accusation that they're all Hufflepuffs, they've decided to forgive you just this once, but you'll owe each of them one favor for showing you mercy. See? The snakes can be magnanimous and collect favors at the same time. That's how Slytherins roll. :D :D :D