Johnny has had the a tendency in the past to not only not keep his commitments but to also be quite forgetful. This long hard bastinado session on the tender soles of his feet will be a not so easy to forget reminder as he walks about, to be more trustworthy in future. To drive the point home even further he gets to receive this punishment while in a humiliating position that also makes his butt and anus candidates to feel the stinging cane. Hopefully he will be more trustworthy in future.