A prisoner on the ship

As we zoom in on the ship's cargo hold we see its cargo consisting of 20 naked men. Each one has their arms tightly cuffed behind their backs. To further prevent them from moving both their legs and a collar around their necks have been attached to bolts into the floor forcing them in an ass up kneeling position.

You are one of these 20 prisoners. Although you wouldn’t really know how many men you share your fate with. Mainly because of the fact that you have been blindfolded for several days now even before you boarded the vessel. The guards overseeing also aren't too keen on you communicating with your fellow prisoners or anyone at all for that matter. Anything short of cries and whimpers has been met with punishment. And your balls are not eager to try that again.

That certainly isn't a pleasant experience. Which begs the question who are you and what did you do to deserve this?