A couple of sexually sadistic Dommes with whom I have shared intense sessions, including an ex-wife, specialized in enhanced punishments. As a masochistic man they have sought to find and then exceed my limits of pain, humiliation, and suffering.
Several times, with various partners, I have been made to hold a large enema of various fluids including liquid soap and other caustic ingredients, while I am severely caned and/or tawsed. This makes it very difficult to retain the enema without leaking as much as a single drop as I am made to flinch and move around to avoid the next stroke. At times this scene has been exhibited to groups of other BDSM people, and not only is this painful and severely uncomfortable, but deeply humiliating as well.
Additional enhancements have included spray bottles filled with highly concentrated solutions of salt solutions to apply to severe cane strokes; nozzle lubrication with burning ointments and veterinary liniments; forced rimming in front of an audience; being made to perform calisthenics while holding a large enema; walking with a bowling ball attached by a chain to a parachute harness attached to my swollen testicles, especially while going up and down long flights of stairs; and suffering cock torment with strong liniments.
As an educated professional and personable executive I am occasionally asked to give a keynote speech before a professional audience. Twice now, in the last three years, I have been given a small but slightly cramping enema in a hotel room just before my presentation, and then made to retain it throughout my presentation and the Q & A period that follows. Only my dominant partner and me know the suffering i am undergoing in front of all of those unknowing audience members.