Originally Posted by Kontact

Never. But I have supervised many young mechanics that would have if I hadn't stopped them - like yourself. Like you, they thought their limited exposure to some aspects of bike mechanics warranted confidence in their own skills and knowledge. And then they cross thread something, cut a steerer too low, crush a carbon steerer, etc when no one is looking.

Maybe you never got past changing flats and putting jerseys on hangers, so you didn't have the opportunity to destroy anything with your limited "skills". Dunno.