Bob went into the crowd and subdued several trouble makers. Although young orc may be stronger than him, his years of experience has taught him to use his bodyweight and technique to subdue the orcs who were causing trouble. The orcs did not see Bob as a threat and as they laid their hands on him, they quickly found about how it feels to be clubbed by a baton and shoved to the ground and cuffed. Bob looks harmless, but is very skilled at arresting bigger guys.