Now don't laugh at this suggestion because it works!!!
Whilst in the washroom at work today ... doing what comes naturally, I decided I might as well kill some time. I figured I might as well practice PR cocktail weenie technique to see how I was progressing. Well, I was able to hold and maintain the weenie for quite some time ... amazing!
The things that go on in washrooms!!! 
Humbily,
Michael Saikali