child wrangler n. (theatrical)
1) The only ASM who didn't get a written contract until it was too late.
2) An unfortunate parent who didn't realize they volunteered for this.
3) A fresh-faced college student who will soon learn that Peter Pan's Lost Boys eat only three things for breakfast: ravioli, hot dogs, and the good intentions of fresh-faced college students.
4) Someone who is actually good with children, who can motivate them to follow directions without use of force or bribery, who genuinely enjoys the job despite almost no compensation, and who never has any trouble finding a parking spot in the vicinity of the theatre for the magical unicorn which carries them from the fairy palace in the gumdrop kingdom every morning.
See also: "Hey, can you do me a small favour? Just a tiny one."