First of, no and no.
Med-ex while not terribly big is an injected drug similar to Heroin, or Psycho, or other nasty stuff.
Keep in mind (And this goes for everyone because I'm going to start killing people if things continue the way they are) You're in a freeking slaver's prison designed to coral you up and kill you for the entertainment of viewers.
Your well being is not cared about. They won't lose sleep shooting you in the face.
Upon being admited, you start with nothing but the clothes on your back. I made this rather clear when I wrote the OOC. I should have enforced this with the random deck of Caravan cards that got "Smuggled" into the tanks. When making this game I was really pushing for the aspect of realism, something that hasn't been made a priority it seems. Edit your post and omit that section or change it up.
Ya'll are hurting mah brain. Anyway, think about it. You're in a hostage situation, you have no trump cards keeping you alive at the moment. Presently from a slaver's standpoint, it's easier to put a bullet in your face than it is to deal with the problem rationally.
In an actual situation Verbal's shotgun blast would have been loaded with buckshot from the get go. I didn't want to be mean so I fudged reality and invented bean bag rounds.
CONSIDER THIS A WARNING
While not trying to be a dick, I have no qualms killing my players.