Sonic...he didn't want you to know about his Werehog problem...at all. He was scared of what you would think of him. Would you run? Call him a monster? Hate him? So every night before he would become a Werehog...he would have Chip watch you to make sure you didn't see anything...your in Apotos with them.

Sonic the Hedgehog: "Just go to sleep...I'm going out for a run, rest well. Chip make sure they are safe."

Chip: "You got it Sonic."