As AJ rightly pointed out in his comment on the previous post, some disciplinarians employ a wide range of measures in dealing with their naughty adult boys. This of course can include the dreaded enema! Giving up control of one's most intimate bodily functions can be a very salutary experience which is both erotic and embarrassing. There are those who consider that colonic treatments are beneficial for health - whilst others consider them beneficial for punishment! Certainly, standing to receive a long scolding whilst retaining a large volume of fluid can be a squirmingly uncomfortable experience - either before or after a spanking. The childish sprint to the potty afterwards is enough to bring even the most arrogant male down a peg or two!
The nice drawing is by that excellent artist Barb.