How does Huck escape from the cabin in Illinois? What does his ability to escape suggest about him?

Searching for a way to escape, Huck discovers part of a saw that is missing its handle and starts to saw off a log in the rear corner of the cabin, but is forced to stop when Pap returns. Pap is drunk and makes Huck go outside and bring in all the supplies he has brought from town. Pap proceeds to drunkenly curse everyone he has ever met and spends a significant part of his tirade criticizing the government. Finally when Pap does leave, Huck quickly finishes his sawing and climbs out of the cabin, taking everything worth any money to his canoe. This shows Huck to be resourceful, brave and clever.