I was paving the tunnel when suddenly a group of five people grasped me firmly. I hadn't noticed their presence. I tried to shout but one of them blocked my mouth in such a way I felt breathless. Another one withheld my hands behind while two others held up my two legs each. The fifth one undressed me by using a razor blade he was keeping under his belt. I was trapped. I could make no move while he shouted to his peers "It's a new pen!"