Yeah he fucking does, I don't even need to look it up, I remember that shit.
But if you need tangible evidence (I love that shit myself):
mc "After that, dad taught me how to fight...well, he taught himself, too."
mc "He had never done it before and he could barely afford the training gear."
mc "His usual hobbies were a bit less action filled..."
mc "Like solving crossword puzzles, meditation, collecting stamps and coins, reading and of course...home improvement."
mc "You see, he's a carpenter, so he really enjoys that sort of thing."