Never hesitate to steal a good idea.
I quit being afraid when my first venture failed and the sky didn't fall down.
When big-time blunders occur in any workplace, the boss or bosses usually are at fault, not clerks or secretaries or salespeople. Not reporters, the buck stops with the boss.
Don't just learn something from every experience, learn something positive.
Everyone should fail in a big way at least once before reaching forty.
Be as nice as possible and as nasty as necessary.