A couple from a circus goes to an adoption agency, but social workers have doubts about their suitability. They produce photos of their 50-foot motor home, the back half of which is a beautifully equipped nursery.
The social workers then are doubtful about the education that would be provided. "We've employed a fulltime tutor who'll teach the child all the subjects.
There are then doubts expressed about the child's healthy upbringing. "Our full-time nanny is an expert in pediatric welfare and diet" they reply.
The social workers are finally satisfied, and ask what age of child they were hoping to adopt. "It doesn't really matter" they say "so long as he fits nicely into the cannon".