Being born in the middle of 6 childern Donald learned a long time ago that chaos is not somethign he perfers. Unfortuantley he was only able to find stability when he left his home.
Gears, springs and cockwork because a passion of his. He can often be found inventing and tinkering with weapons and automatons.
The fact that his tinkering has lead him to a better life is merely a bonus. He's doing what he loves and is around people who actually respect him for what he is and is doing rather than think that tinkering is a waste of time.
“I cannot imagine how the clockwork of the universe can exist without a clockmaker.” – Voltaire