I politely declined two particular jabs (to be given at the same sitting) during Granby (this was out in theatre) having weighed up the pro's and cons as best I could at the time (one was anthrax, forget the other). I was given a right talking to, the Wg Cdr doc was called, threats were made, my details were taken and .....er....nothing ever happened!
I remember the doc going on about disobeying an order, I should be doing what I am told, etc, etc. Yawn.