Stabbing in Serbian public transportation

couple a days ago I believe I was stabbed by a drug addict with a needle in Serbian public transportation. firstly, he asked for a favor to call up someone for him cos he did not have enough credit. being a good Samaritan that I am, I did and when I was about to exit and turned my back on him that is when I believe he stabbed me in the back. I feel pain from that moment all along at that particular spot. If he did it, then he was sent to do it. Just want this on record as I believe the main culprit as far as order givers were those I mentioned here in this blog on several occasions.