(Nuisance Boner) also known as a R.O.B - Random Occurring Boner - generally happens when you are bored "stiff", in school or family events and all things in between. This is the type of boner that usually goes unnoticed, non the less you are completely aware of what is happening. The more you convince yourself you don't want wood the harder it gets.
(you) - So i was at my family christmas the other day and my aunt kept blabbing about her divorce problems, next thing you know. Mad Noner is coming on.
(Buddy) - Haha happens every time!
(you) - I know man and the more you try to stop it the more raging it gets.