"Hello, Professor McGonagall," said Moody calmly, bouncing the ferret still higher. "What -- what are you doing?" said Professor McGonagall, her eyes following the bouncing ferret's progress through the air. "Teaching," said Moody. "Teach -- Moody, " shrieked Professor McGonagall, the books spilling out of her arms. "Yep," said Moody. "Moody, we never use Transfiguration as a punishment!" said Professor McGonagall weakly."