In what circumstances will a court reduce the basic child support amount below the Guidelines amount?

In Green v. Green, supra, Prowse J.A. recognized that there are circumstances where it would not be in the best interests of the children to reduce the Guidelines amount at all. She noted that in Spanier v. Spanier, supra, a reduction in support below the Guidelines amount would not have had a detrimental effect on the child in the custodial home as the lower income mother was married to a physician and both households were relatively prosperous. In the case before her, she awarded basic child support in an amount which was less than the Guidelines amount but greater than the amounts calculated by using any of the formulas. To the basic child support amount she added the access parent’s share of private school fees.