Don't you hate it when your in Jail, and a cafeteria fight breaks out, You don't have a weapon to fend off rival inmates, and a crazed fellow prisoner is charging towards with an ink pen ready to tattoo your trachea? (We all hate that. Haha, I'm playing)
Well no need to worry!
The pen is so flexible that it will bend before it can do any harm making it ideal for Prisoner use.
Case and Point! (pun intended, there is no word of the pen coming with a case. Maybe you can put a rope on it)
Its in use in most Federal Prisons and runs for $10 here
You can also give them to your children who argue all the time.