The generic and conventional 'Danger Wank' where one must crack one off whilst calling mother to ones bedroom with the challenge of shooting load before she enters is so last century.

How about add some more 'Danger'

The 'Supreme Danger Wank' is where one calls mother to ones bedroom before self service has commenced. The aim of the game is wait until mother is in bedroom then proceed to wank one's self into oblivion and shooting man milk aimlessly before mother leaves the bedroom in disgust.

the thing that you don’t have when you’re phones percentage is over 20