That is impossible. Opportunity doesn’t come knocking twice!
Son: The going bit is fine as is the coming home bit too but I'm not too keen on the time in-between!
Because he came.
A. "It's okay Daddy I'm not hurt."
Because there's always Whos there!
Jeffrey. Knock knock, Who's there? NOT JEFFREY
Didn't have any hands.. (the real punch line) Knock knock.. Who's there Not Timmy..
So they can open doors of opportunity for their students.