Because they're practicing to be men.
The man with the power." - "What power " - "The power of Hoodoo." - "Who do " - "You do." - "Do what " - "Remind me of a man."
The knife just wasn't cutting it.
He ran out of little boys
Because they both "practice" their professions.
A puppy eventually grows up and stops whining. Thanks to PuddinHead742 for this one.
Both the engines and the co-pilot stop whining.
He went to Jared.
Because it's easy to inject the seed of religion in them. Be gentle pls