I recently came across a video clip of a very interesting predicament scene. Not predicament bondage as I normally think of it but very inventive.

The sub was well secured to a bondage chair wearing a gas mask. Mistress had the end of the breathing hose in her hand with her palm over the end, cutting off his air supply. In his hand the sub had a remote control for the Erostek type unit wired to his cock and balls (electro butt plug too I think). The only way the sub could get the Mistress to remove her palm from the air inlet was to push the button and give himself a high intensity shock.

The mistress's line was something like "You can breath as much and as often as you like. All you have to do is keep pushing the button."

Watching the sub struggle with his choices was very hot